Home / 83,730.24-125,582.40-79,103.52

Finding the Fourth Proportional to 83,730.24, 125,582.40 and 79,103.52

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Solution

The fourth proportional to 83,730.24, 125,582.40 and 79,103.52 is: 118,643.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,730.24 : 125,582.40 = 79,103.52 : x
  2. Step 2: Convert to fraction form
    83,730.24/125,582.40 = 79,103.52/x
  3. Step 3: Cross multiply
    83,730.24x = 125,582.40 × 79,103.52
  4. Step 4: Simplify right side
    83,730.24x = 9,934,009,890.05
  5. Step 5: Solve for x
    x = 9,934,009,890.05/83,730.24
  6. Step 6: Final answer
    x = 118,643.04

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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.