Home / 81,204.18-112,058.43-47,211.23

Finding the Fourth Proportional to 81,204.18, 112,058.43 and 47,211.23

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Solution

The fourth proportional to 81,204.18, 112,058.43 and 47,211.23 is: 65,149.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,204.18 : 112,058.43 = 47,211.23 : x
  2. Step 2: Convert to fraction form
    81,204.18/112,058.43 = 47,211.23/x
  3. Step 3: Cross multiply
    81,204.18x = 112,058.43 × 47,211.23
  4. Step 4: Simplify right side
    81,204.18x = 5,290,415,751.88
  5. Step 5: Solve for x
    x = 5,290,415,751.88/81,204.18
  6. Step 6: Final answer
    x = 65,149.55

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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.