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Finding the Fourth Proportional to 80,035.52, 110,130.28 and 77,600.64

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Solution

The fourth proportional to 80,035.52, 110,130.28 and 77,600.64 is: 106,779.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,035.52 : 110,130.28 = 77,600.64 : x
  2. Step 2: Convert to fraction form
    80,035.52/110,130.28 = 77,600.64/x
  3. Step 3: Cross multiply
    80,035.52x = 110,130.28 × 77,600.64
  4. Step 4: Simplify right side
    80,035.52x = 8,546,180,211.38
  5. Step 5: Solve for x
    x = 8,546,180,211.38/80,035.52
  6. Step 6: Final answer
    x = 106,779.84

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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.