Home / 62,380.38-86,094.64-39,729.14

Finding the Fourth Proportional to 62,380.38, 86,094.64 and 39,729.14

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Solution

The fourth proportional to 62,380.38, 86,094.64 and 39,729.14 is: 54,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,380.38 : 86,094.64 = 39,729.14 : x
  2. Step 2: Convert to fraction form
    62,380.38/86,094.64 = 39,729.14/x
  3. Step 3: Cross multiply
    62,380.38x = 86,094.64 × 39,729.14
  4. Step 4: Simplify right side
    62,380.38x = 3,420,466,005.81
  5. Step 5: Solve for x
    x = 3,420,466,005.81/62,380.38
  6. Step 6: Final answer
    x = 54,832.40

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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.