Home / 83,890.22-125,834.65-39,492.75

Finding the Fourth Proportional to 83,890.22, 125,834.65 and 39,492.75

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Solution

The fourth proportional to 83,890.22, 125,834.65 and 39,492.75 is: 59,238.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,890.22 : 125,834.65 = 39,492.75 : x
  2. Step 2: Convert to fraction form
    83,890.22/125,834.65 = 39,492.75/x
  3. Step 3: Cross multiply
    83,890.22x = 125,834.65 × 39,492.75
  4. Step 4: Simplify right side
    83,890.22x = 4,969,556,373.79
  5. Step 5: Solve for x
    x = 4,969,556,373.79/83,890.22
  6. Step 6: Final answer
    x = 59,238.80

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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.