Home / 64,221.40-96,332.10-53,140.60

Finding the Fourth Proportional to 64,221.40, 96,332.10 and 53,140.60

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Solution

The fourth proportional to 64,221.40, 96,332.10 and 53,140.60 is: 79,710.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,221.40 : 96,332.10 = 53,140.60 : x
  2. Step 2: Convert to fraction form
    64,221.40/96,332.10 = 53,140.60/x
  3. Step 3: Cross multiply
    64,221.40x = 96,332.10 × 53,140.60
  4. Step 4: Simplify right side
    64,221.40x = 5,119,145,593.26
  5. Step 5: Solve for x
    x = 5,119,145,593.26/64,221.40
  6. Step 6: Final answer
    x = 79,710.90

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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.