Home / 86,321.55-119,129.72-52,331.46

Finding the Fourth Proportional to 86,321.55, 119,129.72 and 52,331.46

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Solution

The fourth proportional to 86,321.55, 119,129.72 and 52,331.46 is: 72,221.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,321.55 : 119,129.72 = 52,331.46 : x
  2. Step 2: Convert to fraction form
    86,321.55/119,129.72 = 52,331.46/x
  3. Step 3: Cross multiply
    86,321.55x = 119,129.72 × 52,331.46
  4. Step 4: Simplify right side
    86,321.55x = 6,234,232,176.99
  5. Step 5: Solve for x
    x = 6,234,232,176.99/86,321.55
  6. Step 6: Final answer
    x = 72,221.04

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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.