Home / 86,868.20-130,205.10-49,446.20

Finding the Fourth Proportional to 86,868.20, 130,205.10 and 49,446.20

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Solution

The fourth proportional to 86,868.20, 130,205.10 and 49,446.20 is: 74,113.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,868.20 : 130,205.10 = 49,446.20 : x
  2. Step 2: Convert to fraction form
    86,868.20/130,205.10 = 49,446.20/x
  3. Step 3: Cross multiply
    86,868.20x = 130,205.10 × 49,446.20
  4. Step 4: Simplify right side
    86,868.20x = 6,438,147,415.62
  5. Step 5: Solve for x
    x = 6,438,147,415.62/86,868.20
  6. Step 6: Final answer
    x = 74,113.97

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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.