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Finding the Fourth Proportional to 79,010.56, 109,034.64 and 43,200.64

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Solution

The fourth proportional to 79,010.56, 109,034.64 and 43,200.64 is: 59,616.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,010.56 : 109,034.64 = 43,200.64 : x
  2. Step 2: Convert to fraction form
    79,010.56/109,034.64 = 43,200.64/x
  3. Step 3: Cross multiply
    79,010.56x = 109,034.64 × 43,200.64
  4. Step 4: Simplify right side
    79,010.56x = 4,710,366,230.17
  5. Step 5: Solve for x
    x = 4,710,366,230.17/79,010.56
  6. Step 6: Final answer
    x = 59,616.92

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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.