Home / 70,862.20-97,789.82-39,031.10

Finding the Fourth Proportional to 70,862.20, 97,789.82 and 39,031.10

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Solution

The fourth proportional to 70,862.20, 97,789.82 and 39,031.10 is: 53,862.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,862.20 : 97,789.82 = 39,031.10 : x
  2. Step 2: Convert to fraction form
    70,862.20/97,789.82 = 39,031.10/x
  3. Step 3: Cross multiply
    70,862.20x = 97,789.82 × 39,031.10
  4. Step 4: Simplify right side
    70,862.20x = 3,816,843,754.45
  5. Step 5: Solve for x
    x = 3,816,843,754.45/70,862.20
  6. Step 6: Final answer
    x = 53,862.91

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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.