Home / 83,487.15-115,212.60-45,246.78

Finding the Fourth Proportional to 83,487.15, 115,212.60 and 45,246.78

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Solution

The fourth proportional to 83,487.15, 115,212.60 and 45,246.78 is: 62,440.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,487.15 : 115,212.60 = 45,246.78 : x
  2. Step 2: Convert to fraction form
    83,487.15/115,212.60 = 45,246.78/x
  3. Step 3: Cross multiply
    83,487.15x = 115,212.60 × 45,246.78
  4. Step 4: Simplify right side
    83,487.15x = 5,212,999,165.43
  5. Step 5: Solve for x
    x = 5,212,999,165.43/83,487.15
  6. Step 6: Final answer
    x = 62,440.74

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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.