Home / 79,130.10-109,200.84-43,319.52

Finding the Fourth Proportional to 79,130.10, 109,200.84 and 43,319.52

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Solution

The fourth proportional to 79,130.10, 109,200.84 and 43,319.52 is: 59,781.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,130.10 : 109,200.84 = 43,319.52 : x
  2. Step 2: Convert to fraction form
    79,130.10/109,200.84 = 43,319.52/x
  3. Step 3: Cross multiply
    79,130.10x = 109,200.84 × 43,319.52
  4. Step 4: Simplify right side
    79,130.10x = 4,730,527,972.40
  5. Step 5: Solve for x
    x = 4,730,527,972.40/79,130.10
  6. Step 6: Final answer
    x = 59,781.65

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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.