Home / 81,385.35-112,306.33-45,084.33

Finding the Fourth Proportional to 81,385.35, 112,306.33 and 45,084.33

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Solution

The fourth proportional to 81,385.35, 112,306.33 and 45,084.33 is: 62,213.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,385.35 : 112,306.33 = 45,084.33 : x
  2. Step 2: Convert to fraction form
    81,385.35/112,306.33 = 45,084.33/x
  3. Step 3: Cross multiply
    81,385.35x = 112,306.33 × 45,084.33
  4. Step 4: Simplify right side
    81,385.35x = 5,063,255,642.81
  5. Step 5: Solve for x
    x = 5,063,255,642.81/81,385.35
  6. Step 6: Final answer
    x = 62,213.35

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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.