Home / 83,120.80-124,595-38,711.02

Finding the Fourth Proportional to 83,120.80, 124,595 and 38,711.02

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Solution

The fourth proportional to 83,120.80, 124,595 and 38,711.02 is: 58,026.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,120.80 : 124,595 = 38,711.02 : x
  2. Step 2: Convert to fraction form
    83,120.80/124,595 = 38,711.02/x
  3. Step 3: Cross multiply
    83,120.80x = 124,595 × 38,711.02
  4. Step 4: Simplify right side
    83,120.80x = 4,823,199,536.90
  5. Step 5: Solve for x
    x = 4,823,199,536.90/83,120.80
  6. Step 6: Final answer
    x = 58,026.38

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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.