Home / 87,127.12-120,233.80-48,887.36

Finding the Fourth Proportional to 87,127.12, 120,233.80 and 48,887.36

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Solution

The fourth proportional to 87,127.12, 120,233.80 and 48,887.36 is: 67,463.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,127.12 : 120,233.80 = 48,887.36 : x
  2. Step 2: Convert to fraction form
    87,127.12/120,233.80 = 48,887.36/x
  3. Step 3: Cross multiply
    87,127.12x = 120,233.80 × 48,887.36
  4. Step 4: Simplify right side
    87,127.12x = 5,877,913,064.77
  5. Step 5: Solve for x
    x = 5,877,913,064.77/87,127.12
  6. Step 6: Final answer
    x = 67,463.64

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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.