Home / 87,696.47-120,940.40-57,470.83

Finding the Fourth Proportional to 87,696.47, 120,940.40 and 57,470.83

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Solution

The fourth proportional to 87,696.47, 120,940.40 and 57,470.83 is: 79,256.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,696.47 : 120,940.40 = 57,470.83 : x
  2. Step 2: Convert to fraction form
    87,696.47/120,940.40 = 57,470.83/x
  3. Step 3: Cross multiply
    87,696.47x = 120,940.40 × 57,470.83
  4. Step 4: Simplify right side
    87,696.47x = 6,950,545,009.86
  5. Step 5: Solve for x
    x = 6,950,545,009.86/87,696.47
  6. Step 6: Final answer
    x = 79,256.84

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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.