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Finding the Fourth Proportional to 90,266, 124,538.28 and 58,459.28

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Solution

The fourth proportional to 90,266, 124,538.28 and 58,459.28 is: 80,655.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,266 : 124,538.28 = 58,459.28 : x
  2. Step 2: Convert to fraction form
    90,266/124,538.28 = 58,459.28/x
  3. Step 3: Cross multiply
    90,266x = 124,538.28 × 58,459.28
  4. Step 4: Simplify right side
    90,266x = 7,280,418,181.24
  5. Step 5: Solve for x
    x = 7,280,418,181.24/90,266
  6. Step 6: Final answer
    x = 80,655.15

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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.