Home / 71,124.75-98,148.60-39,287.52

Finding the Fourth Proportional to 71,124.75, 98,148.60 and 39,287.52

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Solution

The fourth proportional to 71,124.75, 98,148.60 and 39,287.52 is: 54,214.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,124.75 : 98,148.60 = 39,287.52 : x
  2. Step 2: Convert to fraction form
    71,124.75/98,148.60 = 39,287.52/x
  3. Step 3: Cross multiply
    71,124.75x = 98,148.60 × 39,287.52
  4. Step 4: Simplify right side
    71,124.75x = 3,856,015,085.47
  5. Step 5: Solve for x
    x = 3,856,015,085.47/71,124.75
  6. Step 6: Final answer
    x = 54,214.81

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1.5x scale

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.