Home / 87,811.02-121,178.16-47,523.83

Finding the Fourth Proportional to 87,811.02, 121,178.16 and 47,523.83

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Solution

The fourth proportional to 87,811.02, 121,178.16 and 47,523.83 is: 65,582.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,811.02 : 121,178.16 = 47,523.83 : x
  2. Step 2: Convert to fraction form
    87,811.02/121,178.16 = 47,523.83/x
  3. Step 3: Cross multiply
    87,811.02x = 121,178.16 × 47,523.83
  4. Step 4: Simplify right side
    87,811.02x = 5,758,849,669.66
  5. Step 5: Solve for x
    x = 5,758,849,669.66/87,811.02
  6. Step 6: Final answer
    x = 65,582.31

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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.