Home / 87,953.80-121,370.24-56,119.18

Finding the Fourth Proportional to 87,953.80, 121,370.24 and 56,119.18

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Solution

The fourth proportional to 87,953.80, 121,370.24 and 56,119.18 is: 77,440.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,953.80 : 121,370.24 = 56,119.18 : x
  2. Step 2: Convert to fraction form
    87,953.80/121,370.24 = 56,119.18/x
  3. Step 3: Cross multiply
    87,953.80x = 121,370.24 × 56,119.18
  4. Step 4: Simplify right side
    87,953.80x = 6,811,198,345.20
  5. Step 5: Solve for x
    x = 6,811,198,345.20/87,953.80
  6. Step 6: Final answer
    x = 77,440.64

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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.