Home / 55,281.08-76,287.84-30,130.76

Finding the Fourth Proportional to 55,281.08, 76,287.84 and 30,130.76

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Solution

The fourth proportional to 55,281.08, 76,287.84 and 30,130.76 is: 41,580.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,281.08 : 76,287.84 = 30,130.76 : x
  2. Step 2: Convert to fraction form
    55,281.08/76,287.84 = 30,130.76/x
  3. Step 3: Cross multiply
    55,281.08x = 76,287.84 × 30,130.76
  4. Step 4: Simplify right side
    55,281.08x = 2,298,610,597.96
  5. Step 5: Solve for x
    x = 2,298,610,597.96/55,281.08
  6. Step 6: Final answer
    x = 41,580.42

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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.