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Finding the Fourth Proportional to 64,461.78, 96,688.74 and 38,332.80

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Solution

The fourth proportional to 64,461.78, 96,688.74 and 38,332.80 is: 57,496.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,461.78 : 96,688.74 = 38,332.80 : x
  2. Step 2: Convert to fraction form
    64,461.78/96,688.74 = 38,332.80/x
  3. Step 3: Cross multiply
    64,461.78x = 96,688.74 × 38,332.80
  4. Step 4: Simplify right side
    64,461.78x = 3,706,350,132.67
  5. Step 5: Solve for x
    x = 3,706,350,132.67/64,461.78
  6. Step 6: Final answer
    x = 57,496.86

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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.