Home / 81,348.18-112,255.22-45,537.89

Finding the Fourth Proportional to 81,348.18, 112,255.22 and 45,537.89

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Solution

The fourth proportional to 81,348.18, 112,255.22 and 45,537.89 is: 62,839.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,348.18 : 112,255.22 = 45,537.89 : x
  2. Step 2: Convert to fraction form
    81,348.18/112,255.22 = 45,537.89/x
  3. Step 3: Cross multiply
    81,348.18x = 112,255.22 × 45,537.89
  4. Step 4: Simplify right side
    81,348.18x = 5,111,865,071.32
  5. Step 5: Solve for x
    x = 5,111,865,071.32/81,348.18
  6. Step 6: Final answer
    x = 62,839.33

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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.