Home / 80,474.10-120,711.15-59,738.10

Finding the Fourth Proportional to 80,474.10, 120,711.15 and 59,738.10

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Solution

The fourth proportional to 80,474.10, 120,711.15 and 59,738.10 is: 89,607.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,474.10 : 120,711.15 = 59,738.10 : x
  2. Step 2: Convert to fraction form
    80,474.10/120,711.15 = 59,738.10/x
  3. Step 3: Cross multiply
    80,474.10x = 120,711.15 × 59,738.10
  4. Step 4: Simplify right side
    80,474.10x = 7,211,054,749.82
  5. Step 5: Solve for x
    x = 7,211,054,749.82/80,474.10
  6. Step 6: Final answer
    x = 89,607.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.