Home / 86,986.20-120,050.89-48,756.05

Finding the Fourth Proportional to 86,986.20, 120,050.89 and 48,756.05

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Solution

The fourth proportional to 86,986.20, 120,050.89 and 48,756.05 is: 67,288.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,986.20 : 120,050.89 = 48,756.05 : x
  2. Step 2: Convert to fraction form
    86,986.20/120,050.89 = 48,756.05/x
  3. Step 3: Cross multiply
    86,986.20x = 120,050.89 × 48,756.05
  4. Step 4: Simplify right side
    86,986.20x = 5,853,207,373.62
  5. Step 5: Solve for x
    x = 5,853,207,373.62/86,986.20
  6. Step 6: Final answer
    x = 67,288.92

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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.