Home / 83,717.10-125,587.80-39,345.30

Finding the Fourth Proportional to 83,717.10, 125,587.80 and 39,345.30

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Solution

The fourth proportional to 83,717.10, 125,587.80 and 39,345.30 is: 59,023.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,717.10 : 125,587.80 = 39,345.30 : x
  2. Step 2: Convert to fraction form
    83,717.10/125,587.80 = 39,345.30/x
  3. Step 3: Cross multiply
    83,717.10x = 125,587.80 × 39,345.30
  4. Step 4: Simplify right side
    83,717.10x = 4,941,289,667.34
  5. Step 5: Solve for x
    x = 4,941,289,667.34/83,717.10
  6. Step 6: Final answer
    x = 59,023.66

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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.