Home / 86,130.32-118,861.20-48,404.56

Finding the Fourth Proportional to 86,130.32, 118,861.20 and 48,404.56

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Solution

The fourth proportional to 86,130.32, 118,861.20 and 48,404.56 is: 66,799.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,130.32 : 118,861.20 = 48,404.56 : x
  2. Step 2: Convert to fraction form
    86,130.32/118,861.20 = 48,404.56/x
  3. Step 3: Cross multiply
    86,130.32x = 118,861.20 × 48,404.56
  4. Step 4: Simplify right side
    86,130.32x = 5,753,424,087.07
  5. Step 5: Solve for x
    x = 5,753,424,087.07/86,130.32
  6. Step 6: Final answer
    x = 66,799.06

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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.