Home / 83,612.08-115,364.22-47,314.12

Finding the Fourth Proportional to 83,612.08, 115,364.22 and 47,314.12

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Solution

The fourth proportional to 83,612.08, 115,364.22 and 47,314.12 is: 65,281.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,612.08 : 115,364.22 = 47,314.12 : x
  2. Step 2: Convert to fraction form
    83,612.08/115,364.22 = 47,314.12/x
  3. Step 3: Cross multiply
    83,612.08x = 115,364.22 × 47,314.12
  4. Step 4: Simplify right side
    83,612.08x = 5,458,356,548.79
  5. Step 5: Solve for x
    x = 5,458,356,548.79/83,612.08
  6. Step 6: Final answer
    x = 65,281.91

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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.