Home / 71,582.40-98,782.20-39,750.48

Finding the Fourth Proportional to 71,582.40, 98,782.20 and 39,750.48

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Solution

The fourth proportional to 71,582.40, 98,782.20 and 39,750.48 is: 54,854.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,582.40 : 98,782.20 = 39,750.48 : x
  2. Step 2: Convert to fraction form
    71,582.40/98,782.20 = 39,750.48/x
  3. Step 3: Cross multiply
    71,582.40x = 98,782.20 × 39,750.48
  4. Step 4: Simplify right side
    71,582.40x = 3,926,639,865.46
  5. Step 5: Solve for x
    x = 3,926,639,865.46/71,582.40
  6. Step 6: Final answer
    x = 54,854.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.