Home / 83,070.08-124,512.24-43,631.36

Finding the Fourth Proportional to 83,070.08, 124,512.24 and 43,631.36

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Solution

The fourth proportional to 83,070.08, 124,512.24 and 43,631.36 is: 65,398.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,070.08 : 124,512.24 = 43,631.36 : x
  2. Step 2: Convert to fraction form
    83,070.08/124,512.24 = 43,631.36/x
  3. Step 3: Cross multiply
    83,070.08x = 124,512.24 × 43,631.36
  4. Step 4: Simplify right side
    83,070.08x = 5,432,638,367.85
  5. Step 5: Solve for x
    x = 5,432,638,367.85/83,070.08
  6. Step 6: Final answer
    x = 65,398.26

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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.