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Finding the Fourth Proportional to 92,659.65, 127,774.17 and 79,275.21

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Solution

The fourth proportional to 92,659.65, 127,774.17 and 79,275.21 is: 109,317.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,659.65 : 127,774.17 = 79,275.21 : x
  2. Step 2: Convert to fraction form
    92,659.65/127,774.17 = 79,275.21/x
  3. Step 3: Cross multiply
    92,659.65x = 127,774.17 × 79,275.21
  4. Step 4: Simplify right side
    92,659.65x = 10,129,324,159.33
  5. Step 5: Solve for x
    x = 10,129,324,159.33/92,659.65
  6. Step 6: Final answer
    x = 109,317.53

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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.