Home / 80,899.08-121,200.52-58,657.20

Finding the Fourth Proportional to 80,899.08, 121,200.52 and 58,657.20

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Solution

The fourth proportional to 80,899.08, 121,200.52 and 58,657.20 is: 87,878.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,899.08 : 121,200.52 = 58,657.20 : x
  2. Step 2: Convert to fraction form
    80,899.08/121,200.52 = 58,657.20/x
  3. Step 3: Cross multiply
    80,899.08x = 121,200.52 × 58,657.20
  4. Step 4: Simplify right side
    80,899.08x = 7,109,283,141.74
  5. Step 5: Solve for x
    x = 7,109,283,141.74/80,899.08
  6. Step 6: Final answer
    x = 87,878.42

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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.