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Finding the Fourth Proportional to 91,595.68, 127,048.72 and 89,167.84

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Solution

The fourth proportional to 91,595.68, 127,048.72 and 89,167.84 is: 123,681.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,595.68 : 127,048.72 = 89,167.84 : x
  2. Step 2: Convert to fraction form
    91,595.68/127,048.72 = 89,167.84/x
  3. Step 3: Cross multiply
    91,595.68x = 127,048.72 × 89,167.84
  4. Step 4: Simplify right side
    91,595.68x = 11,328,659,937.16
  5. Step 5: Solve for x
    x = 11,328,659,937.16/91,595.68
  6. Step 6: Final answer
    x = 123,681.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.