Home / 71,042.05-98,031.04-39,208.89

Finding the Fourth Proportional to 71,042.05, 98,031.04 and 39,208.89

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Solution

The fourth proportional to 71,042.05, 98,031.04 and 39,208.89 is: 54,104.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,042.05 : 98,031.04 = 39,208.89 : x
  2. Step 2: Convert to fraction form
    71,042.05/98,031.04 = 39,208.89/x
  3. Step 3: Cross multiply
    71,042.05x = 98,031.04 × 39,208.89
  4. Step 4: Simplify right side
    71,042.05x = 3,843,688,680.57
  5. Step 5: Solve for x
    x = 3,843,688,680.57/71,042.05
  6. Step 6: Final answer
    x = 54,104.42

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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.