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Finding the Fourth Proportional to 55,641.60, 83,462.40 and 39,020.40

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Solution

The fourth proportional to 55,641.60, 83,462.40 and 39,020.40 is: 58,530.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,641.60 : 83,462.40 = 39,020.40 : x
  2. Step 2: Convert to fraction form
    55,641.60/83,462.40 = 39,020.40/x
  3. Step 3: Cross multiply
    55,641.60x = 83,462.40 × 39,020.40
  4. Step 4: Simplify right side
    55,641.60x = 3,256,736,232.96
  5. Step 5: Solve for x
    x = 3,256,736,232.96/55,641.60
  6. Step 6: Final answer
    x = 58,530.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.