Home / 84,425.60-126,638.64-34,505.71

Finding the Fourth Proportional to 84,425.60, 126,638.64 and 34,505.71

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Solution

The fourth proportional to 84,425.60, 126,638.64 and 34,505.71 is: 51,758.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,425.60 : 126,638.64 = 34,505.71 : x
  2. Step 2: Convert to fraction form
    84,425.60/126,638.64 = 34,505.71/x
  3. Step 3: Cross multiply
    84,425.60x = 126,638.64 × 34,505.71
  4. Step 4: Simplify right side
    84,425.60x = 4,369,755,870.04
  5. Step 5: Solve for x
    x = 4,369,755,870.04/84,425.60
  6. Step 6: Final answer
    x = 51,758.66

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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.