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Finding the Fourth Proportional to 64,981.70, 97,472.55 and 29,989.70

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Solution

The fourth proportional to 64,981.70, 97,472.55 and 29,989.70 is: 44,984.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,981.70 : 97,472.55 = 29,989.70 : x
  2. Step 2: Convert to fraction form
    64,981.70/97,472.55 = 29,989.70/x
  3. Step 3: Cross multiply
    64,981.70x = 97,472.55 × 29,989.70
  4. Step 4: Simplify right side
    64,981.70x = 2,923,172,532.74
  5. Step 5: Solve for x
    x = 2,923,172,532.74/64,981.70
  6. Step 6: Final answer
    x = 44,984.55

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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.