Home / 87,803.64-121,168.80-47,517.48

Finding the Fourth Proportional to 87,803.64, 121,168.80 and 47,517.48

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Solution

The fourth proportional to 87,803.64, 121,168.80 and 47,517.48 is: 65,574.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,803.64 : 121,168.80 = 47,517.48 : x
  2. Step 2: Convert to fraction form
    87,803.64/121,168.80 = 47,517.48/x
  3. Step 3: Cross multiply
    87,803.64x = 121,168.80 × 47,517.48
  4. Step 4: Simplify right side
    87,803.64x = 5,757,636,030.62
  5. Step 5: Solve for x
    x = 5,757,636,030.62/87,803.64
  6. Step 6: Final answer
    x = 65,574.00

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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.