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Finding the Fourth Proportional to 85,882.16, 128,808.65 and 22,702.97

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Solution

The fourth proportional to 85,882.16, 128,808.65 and 22,702.97 is: 34,050.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,882.16 : 128,808.65 = 22,702.97 : x
  2. Step 2: Convert to fraction form
    85,882.16/128,808.65 = 22,702.97/x
  3. Step 3: Cross multiply
    85,882.16x = 128,808.65 × 22,702.97
  4. Step 4: Simplify right side
    85,882.16x = 2,924,338,159.13
  5. Step 5: Solve for x
    x = 2,924,338,159.13/85,882.16
  6. Step 6: Final answer
    x = 34,050.59

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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.