Home / 87,922.12-121,332.54-47,636.16

Finding the Fourth Proportional to 87,922.12, 121,332.54 and 47,636.16

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Solution

The fourth proportional to 87,922.12, 121,332.54 and 47,636.16 is: 65,737.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,922.12 : 121,332.54 = 47,636.16 : x
  2. Step 2: Convert to fraction form
    87,922.12/121,332.54 = 47,636.16/x
  3. Step 3: Cross multiply
    87,922.12x = 121,332.54 × 47,636.16
  4. Step 4: Simplify right side
    87,922.12x = 5,779,816,288.65
  5. Step 5: Solve for x
    x = 5,779,816,288.65/87,922.12
  6. Step 6: Final answer
    x = 65,737.91

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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.