Home / 87,743.80-121,086.04-47,457.60

Finding the Fourth Proportional to 87,743.80, 121,086.04 and 47,457.60

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Solution

The fourth proportional to 87,743.80, 121,086.04 and 47,457.60 is: 65,491.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,743.80 : 121,086.04 = 47,457.60 : x
  2. Step 2: Convert to fraction form
    87,743.80/121,086.04 = 47,457.60/x
  3. Step 3: Cross multiply
    87,743.80x = 121,086.04 × 47,457.60
  4. Step 4: Simplify right side
    87,743.80x = 5,746,452,851.90
  5. Step 5: Solve for x
    x = 5,746,452,851.90/87,743.80
  6. Step 6: Final answer
    x = 65,491.27

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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.