Home / 87,666.07-120,973.10-49,426.98

Finding the Fourth Proportional to 87,666.07, 120,973.10 and 49,426.98

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Solution

The fourth proportional to 87,666.07, 120,973.10 and 49,426.98 is: 68,205.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,666.07 : 120,973.10 = 49,426.98 : x
  2. Step 2: Convert to fraction form
    87,666.07/120,973.10 = 49,426.98/x
  3. Step 3: Cross multiply
    87,666.07x = 120,973.10 × 49,426.98
  4. Step 4: Simplify right side
    87,666.07x = 5,979,335,117.81
  5. Step 5: Solve for x
    x = 5,979,335,117.81/87,666.07
  6. Step 6: Final answer
    x = 68,205.81

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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.