Home / 86,236.25-129,302.53-32,931.77

Finding the Fourth Proportional to 86,236.25, 129,302.53 and 32,931.77

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Solution

The fourth proportional to 86,236.25, 129,302.53 and 32,931.77 is: 49,377.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,236.25 : 129,302.53 = 32,931.77 : x
  2. Step 2: Convert to fraction form
    86,236.25/129,302.53 = 32,931.77/x
  3. Step 3: Cross multiply
    86,236.25x = 129,302.53 × 32,931.77
  4. Step 4: Simplify right side
    86,236.25x = 4,258,160,449.54
  5. Step 5: Solve for x
    x = 4,258,160,449.54/86,236.25
  6. Step 6: Final answer
    x = 49,377.85

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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.