Home / 71,012.12-97,995.30-39,180.92

Finding the Fourth Proportional to 71,012.12, 97,995.30 and 39,180.92

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Solution

The fourth proportional to 71,012.12, 97,995.30 and 39,180.92 is: 54,068.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,012.12 : 97,995.30 = 39,180.92 : x
  2. Step 2: Convert to fraction form
    71,012.12/97,995.30 = 39,180.92/x
  3. Step 3: Cross multiply
    71,012.12x = 97,995.30 × 39,180.92
  4. Step 4: Simplify right side
    71,012.12x = 3,839,546,009.68
  5. Step 5: Solve for x
    x = 3,839,546,009.68/71,012.12
  6. Step 6: Final answer
    x = 54,068.88

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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.