Home / 55,998.08-77,277.36-30,847.60

Finding the Fourth Proportional to 55,998.08, 77,277.36 and 30,847.60

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Solution

The fourth proportional to 55,998.08, 77,277.36 and 30,847.60 is: 42,569.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,998.08 : 77,277.36 = 30,847.60 : x
  2. Step 2: Convert to fraction form
    55,998.08/77,277.36 = 30,847.60/x
  3. Step 3: Cross multiply
    55,998.08x = 77,277.36 × 30,847.60
  4. Step 4: Simplify right side
    55,998.08x = 2,383,821,090.34
  5. Step 5: Solve for x
    x = 2,383,821,090.34/55,998.08
  6. Step 6: Final answer
    x = 42,569.69

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.