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Finding the Fourth Proportional to 84,459.89, 126,726.57 and 52,942.17

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Solution

The fourth proportional to 84,459.89, 126,726.57 and 52,942.17 is: 79,436.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,459.89 : 126,726.57 = 52,942.17 : x
  2. Step 2: Convert to fraction form
    84,459.89/126,726.57 = 52,942.17/x
  3. Step 3: Cross multiply
    84,459.89x = 126,726.57 × 52,942.17
  4. Step 4: Simplify right side
    84,459.89x = 6,709,179,612.46
  5. Step 5: Solve for x
    x = 6,709,179,612.46/84,459.89
  6. Step 6: Final answer
    x = 79,436.29

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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.