Home / 80,946.83-121,437.53-28,359.47

Finding the Fourth Proportional to 80,946.83, 121,437.53 and 28,359.47

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Solution

The fourth proportional to 80,946.83, 121,437.53 and 28,359.47 is: 42,545.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,946.83 : 121,437.53 = 28,359.47 : x
  2. Step 2: Convert to fraction form
    80,946.83/121,437.53 = 28,359.47/x
  3. Step 3: Cross multiply
    80,946.83x = 121,437.53 × 28,359.47
  4. Step 4: Simplify right side
    80,946.83x = 3,443,904,257.05
  5. Step 5: Solve for x
    x = 3,443,904,257.05/80,946.83
  6. Step 6: Final answer
    x = 42,545.26

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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.