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Finding the Fourth Proportional to 92,856.47, 127,855.01 and 72,520.68

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Solution

The fourth proportional to 92,856.47, 127,855.01 and 72,520.68 is: 99,854.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,856.47 : 127,855.01 = 72,520.68 : x
  2. Step 2: Convert to fraction form
    92,856.47/127,855.01 = 72,520.68/x
  3. Step 3: Cross multiply
    92,856.47x = 127,855.01 × 72,520.68
  4. Step 4: Simplify right side
    92,856.47x = 9,272,131,946.97
  5. Step 5: Solve for x
    x = 9,272,131,946.97/92,856.47
  6. Step 6: Final answer
    x = 99,854.45

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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.