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Finding the Fourth Proportional to 34,101.60, 51,159.60 and 10,407.20

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Solution

The fourth proportional to 34,101.60, 51,159.60 and 10,407.20 is: 15,613.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,101.60 : 51,159.60 = 10,407.20 : x
  2. Step 2: Convert to fraction form
    34,101.60/51,159.60 = 10,407.20/x
  3. Step 3: Cross multiply
    34,101.60x = 51,159.60 × 10,407.20
  4. Step 4: Simplify right side
    34,101.60x = 532,428,189.12
  5. Step 5: Solve for x
    x = 532,428,189.12/34,101.60
  6. Step 6: Final answer
    x = 15,613.00

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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.