Home / 83,001.72-124,438.78-42,977.80

Finding the Fourth Proportional to 83,001.72, 124,438.78 and 42,977.80

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Solution

The fourth proportional to 83,001.72, 124,438.78 and 42,977.80 is: 64,433.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,001.72 : 124,438.78 = 42,977.80 : x
  2. Step 2: Convert to fraction form
    83,001.72/124,438.78 = 42,977.80/x
  3. Step 3: Cross multiply
    83,001.72x = 124,438.78 × 42,977.80
  4. Step 4: Simplify right side
    83,001.72x = 5,348,104,999.08
  5. Step 5: Solve for x
    x = 5,348,104,999.08/83,001.72
  6. Step 6: Final answer
    x = 64,433.66

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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.