Home / 87,234.76-120,381.06-51,424.12

Finding the Fourth Proportional to 87,234.76, 120,381.06 and 51,424.12

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Solution

The fourth proportional to 87,234.76, 120,381.06 and 51,424.12 is: 70,963.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,234.76 : 120,381.06 = 51,424.12 : x
  2. Step 2: Convert to fraction form
    87,234.76/120,381.06 = 51,424.12/x
  3. Step 3: Cross multiply
    87,234.76x = 120,381.06 × 51,424.12
  4. Step 4: Simplify right side
    87,234.76x = 6,190,490,075.17
  5. Step 5: Solve for x
    x = 6,190,490,075.17/87,234.76
  6. Step 6: Final answer
    x = 70,963.57

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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.