Home / 87,743.46-121,085.52-47,457.18

Finding the Fourth Proportional to 87,743.46, 121,085.52 and 47,457.18

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Solution

The fourth proportional to 87,743.46, 121,085.52 and 47,457.18 is: 65,490.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,743.46 : 121,085.52 = 47,457.18 : x
  2. Step 2: Convert to fraction form
    87,743.46/121,085.52 = 47,457.18/x
  3. Step 3: Cross multiply
    87,743.46x = 121,085.52 × 47,457.18
  4. Step 4: Simplify right side
    87,743.46x = 5,746,377,318.03
  5. Step 5: Solve for x
    x = 5,746,377,318.03/87,743.46
  6. Step 6: Final answer
    x = 65,490.66

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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.