Home / 83,916.90-125,877.03-31,315.89

Finding the Fourth Proportional to 83,916.90, 125,877.03 and 31,315.89

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Solution

The fourth proportional to 83,916.90, 125,877.03 and 31,315.89 is: 46,974.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,916.90 : 125,877.03 = 31,315.89 : x
  2. Step 2: Convert to fraction form
    83,916.90/125,877.03 = 31,315.89/x
  3. Step 3: Cross multiply
    83,916.90x = 125,877.03 × 31,315.89
  4. Step 4: Simplify right side
    83,916.90x = 3,941,951,225.01
  5. Step 5: Solve for x
    x = 3,941,951,225.01/83,916.90
  6. Step 6: Final answer
    x = 46,974.46

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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.