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Finding the Fourth Proportional to 92,635.65, 127,741.05 and 79,251.21

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Solution

The fourth proportional to 92,635.65, 127,741.05 and 79,251.21 is: 109,284.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,635.65 : 127,741.05 = 79,251.21 : x
  2. Step 2: Convert to fraction form
    92,635.65/127,741.05 = 79,251.21/x
  3. Step 3: Cross multiply
    92,635.65x = 127,741.05 × 79,251.21
  4. Step 4: Simplify right side
    92,635.65x = 10,123,632,779.17
  5. Step 5: Solve for x
    x = 10,123,632,779.17/92,635.65
  6. Step 6: Final answer
    x = 109,284.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.