Home / 86,158.55-118,876.32-50,328.20

Finding the Fourth Proportional to 86,158.55, 118,876.32 and 50,328.20

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Solution

The fourth proportional to 86,158.55, 118,876.32 and 50,328.20 is: 69,439.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,158.55 : 118,876.32 = 50,328.20 : x
  2. Step 2: Convert to fraction form
    86,158.55/118,876.32 = 50,328.20/x
  3. Step 3: Cross multiply
    86,158.55x = 118,876.32 × 50,328.20
  4. Step 4: Simplify right side
    86,158.55x = 5,982,830,613.84
  5. Step 5: Solve for x
    x = 5,982,830,613.84/86,158.55
  6. Step 6: Final answer
    x = 69,439.78

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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.