Home / 70,279.14-96,985.99-38,447.36

Finding the Fourth Proportional to 70,279.14, 96,985.99 and 38,447.36

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Solution

The fourth proportional to 70,279.14, 96,985.99 and 38,447.36 is: 53,057.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,279.14 : 96,985.99 = 38,447.36 : x
  2. Step 2: Convert to fraction form
    70,279.14/96,985.99 = 38,447.36/x
  3. Step 3: Cross multiply
    70,279.14x = 96,985.99 × 38,447.36
  4. Step 4: Simplify right side
    70,279.14x = 3,728,855,199.31
  5. Step 5: Solve for x
    x = 3,728,855,199.31/70,279.14
  6. Step 6: Final answer
    x = 53,057.78

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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.