Home / 87,076-120,176.22-51,269.32

Finding the Fourth Proportional to 87,076, 120,176.22 and 51,269.32

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Solution

The fourth proportional to 87,076, 120,176.22 and 51,269.32 is: 70,758.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,076 : 120,176.22 = 51,269.32 : x
  2. Step 2: Convert to fraction form
    87,076/120,176.22 = 51,269.32/x
  3. Step 3: Cross multiply
    87,076x = 120,176.22 × 51,269.32
  4. Step 4: Simplify right side
    87,076x = 6,161,353,079.57
  5. Step 5: Solve for x
    x = 6,161,353,079.57/87,076
  6. Step 6: Final answer
    x = 70,758.34

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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.