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Finding the Fourth Proportional to 84,407.72, 126,564.86 and 34,522.84

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Solution

The fourth proportional to 84,407.72, 126,564.86 and 34,522.84 is: 51,765.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,407.72 : 126,564.86 = 34,522.84 : x
  2. Step 2: Convert to fraction form
    84,407.72/126,564.86 = 34,522.84/x
  3. Step 3: Cross multiply
    84,407.72x = 126,564.86 × 34,522.84
  4. Step 4: Simplify right side
    84,407.72x = 4,369,378,411.40
  5. Step 5: Solve for x
    x = 4,369,378,411.40/84,407.72
  6. Step 6: Final answer
    x = 51,765.15

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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.