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Finding the Fourth Proportional to 85,595.77, 128,306.17 and 29,419.03

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Solution

The fourth proportional to 85,595.77, 128,306.17 and 29,419.03 is: 44,098.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,595.77 : 128,306.17 = 29,419.03 : x
  2. Step 2: Convert to fraction form
    85,595.77/128,306.17 = 29,419.03/x
  3. Step 3: Cross multiply
    85,595.77x = 128,306.17 × 29,419.03
  4. Step 4: Simplify right side
    85,595.77x = 3,774,643,064.42
  5. Step 5: Solve for x
    x = 3,774,643,064.42/85,595.77
  6. Step 6: Final answer
    x = 44,098.48

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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.