Home / 87,475.80-120,713.13-51,677.34

Finding the Fourth Proportional to 87,475.80, 120,713.13 and 51,677.34

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Solution

The fourth proportional to 87,475.80, 120,713.13 and 51,677.34 is: 71,312.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,475.80 : 120,713.13 = 51,677.34 : x
  2. Step 2: Convert to fraction form
    87,475.80/120,713.13 = 51,677.34/x
  3. Step 3: Cross multiply
    87,475.80x = 120,713.13 × 51,677.34
  4. Step 4: Simplify right side
    87,475.80x = 6,238,133,461.47
  5. Step 5: Solve for x
    x = 6,238,133,461.47/87,475.80
  6. Step 6: Final answer
    x = 71,312.68

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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.