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Finding the Fourth Proportional to 85,527.52, 128,279.22 and 29,366.74

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Solution

The fourth proportional to 85,527.52, 128,279.22 and 29,366.74 is: 44,045.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,527.52 : 128,279.22 = 29,366.74 : x
  2. Step 2: Convert to fraction form
    85,527.52/128,279.22 = 29,366.74/x
  3. Step 3: Cross multiply
    85,527.52x = 128,279.22 × 29,366.74
  4. Step 4: Simplify right side
    85,527.52x = 3,767,142,501.14
  5. Step 5: Solve for x
    x = 3,767,142,501.14/85,527.52
  6. Step 6: Final answer
    x = 44,045.97

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1.5x scale

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.