Home / 83,139.90-124,759.02-30,586.26

Finding the Fourth Proportional to 83,139.90, 124,759.02 and 30,586.26

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Solution

The fourth proportional to 83,139.90, 124,759.02 and 30,586.26 is: 45,897.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,139.90 : 124,759.02 = 30,586.26 : x
  2. Step 2: Convert to fraction form
    83,139.90/124,759.02 = 30,586.26/x
  3. Step 3: Cross multiply
    83,139.90x = 124,759.02 × 30,586.26
  4. Step 4: Simplify right side
    83,139.90x = 3,815,911,823.07
  5. Step 5: Solve for x
    x = 3,815,911,823.07/83,139.90
  6. Step 6: Final answer
    x = 45,897.48

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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.