Home / 87,041.50-120,122.13-49,327.90

Finding the Fourth Proportional to 87,041.50, 120,122.13 and 49,327.90

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Solution

The fourth proportional to 87,041.50, 120,122.13 and 49,327.90 is: 68,075.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,041.50 : 120,122.13 = 49,327.90 : x
  2. Step 2: Convert to fraction form
    87,041.50/120,122.13 = 49,327.90/x
  3. Step 3: Cross multiply
    87,041.50x = 120,122.13 × 49,327.90
  4. Step 4: Simplify right side
    87,041.50x = 5,925,372,416.43
  5. Step 5: Solve for x
    x = 5,925,372,416.43/87,041.50
  6. Step 6: Final answer
    x = 68,075.26

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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.