Home / 83,041.92-124,563.36-20,712.42

Finding the Fourth Proportional to 83,041.92, 124,563.36 and 20,712.42

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Solution

The fourth proportional to 83,041.92, 124,563.36 and 20,712.42 is: 31,068.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,041.92 : 124,563.36 = 20,712.42 : x
  2. Step 2: Convert to fraction form
    83,041.92/124,563.36 = 20,712.42/x
  3. Step 3: Cross multiply
    83,041.92x = 124,563.36 × 20,712.42
  4. Step 4: Simplify right side
    83,041.92x = 2,580,008,628.93
  5. Step 5: Solve for x
    x = 2,580,008,628.93/83,041.92
  6. Step 6: Final answer
    x = 31,068.75

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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.