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Finding the Fourth Proportional to 83,130.76, 114,721.14 and 45,404.74

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Solution

The fourth proportional to 83,130.76, 114,721.14 and 45,404.74 is: 62,658.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,130.76 : 114,721.14 = 45,404.74 : x
  2. Step 2: Convert to fraction form
    83,130.76/114,721.14 = 45,404.74/x
  3. Step 3: Cross multiply
    83,130.76x = 114,721.14 × 45,404.74
  4. Step 4: Simplify right side
    83,130.76x = 5,208,883,534.20
  5. Step 5: Solve for x
    x = 5,208,883,534.20/83,130.76
  6. Step 6: Final answer
    x = 62,658.92

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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.