Home / 71,042.52-98,038.19-39,211.42

Finding the Fourth Proportional to 71,042.52, 98,038.19 and 39,211.42

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Solution

The fourth proportional to 71,042.52, 98,038.19 and 39,211.42 is: 54,111.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,042.52 : 98,038.19 = 39,211.42 : x
  2. Step 2: Convert to fraction form
    71,042.52/98,038.19 = 39,211.42/x
  3. Step 3: Cross multiply
    71,042.52x = 98,038.19 × 39,211.42
  4. Step 4: Simplify right side
    71,042.52x = 3,844,216,680.88
  5. Step 5: Solve for x
    x = 3,844,216,680.88/71,042.52
  6. Step 6: Final answer
    x = 54,111.49

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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.