Home / 87,174.77-120,281.56-51,368.11

Finding the Fourth Proportional to 87,174.77, 120,281.56 and 51,368.11

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Solution

The fourth proportional to 87,174.77, 120,281.56 and 51,368.11 is: 70,876.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,174.77 : 120,281.56 = 51,368.11 : x
  2. Step 2: Convert to fraction form
    87,174.77/120,281.56 = 51,368.11/x
  3. Step 3: Cross multiply
    87,174.77x = 120,281.56 × 51,368.11
  4. Step 4: Simplify right side
    87,174.77x = 6,178,635,975.93
  5. Step 5: Solve for x
    x = 6,178,635,975.93/87,174.77
  6. Step 6: Final answer
    x = 70,876.43

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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.