Home / 71,071.45-98,080.13-39,242.36

Finding the Fourth Proportional to 71,071.45, 98,080.13 and 39,242.36

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Solution

The fourth proportional to 71,071.45, 98,080.13 and 39,242.36 is: 54,155.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,071.45 : 98,080.13 = 39,242.36 : x
  2. Step 2: Convert to fraction form
    71,071.45/98,080.13 = 39,242.36/x
  3. Step 3: Cross multiply
    71,071.45x = 98,080.13 × 39,242.36
  4. Step 4: Simplify right side
    71,071.45x = 3,848,895,770.31
  5. Step 5: Solve for x
    x = 3,848,895,770.31/71,071.45
  6. Step 6: Final answer
    x = 54,155.30

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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.