Home / 62,615.20-86,358.36-38,725.12

Finding the Fourth Proportional to 62,615.20, 86,358.36 and 38,725.12

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Solution

The fourth proportional to 62,615.20, 86,358.36 and 38,725.12 is: 53,409.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,615.20 : 86,358.36 = 38,725.12 : x
  2. Step 2: Convert to fraction form
    62,615.20/86,358.36 = 38,725.12/x
  3. Step 3: Cross multiply
    62,615.20x = 86,358.36 × 38,725.12
  4. Step 4: Simplify right side
    62,615.20x = 3,344,237,854.00
  5. Step 5: Solve for x
    x = 3,344,237,854.00/62,615.20
  6. Step 6: Final answer
    x = 53,409.36

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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.