Home / 71,112.98-98,140.56-39,282.32

Finding the Fourth Proportional to 71,112.98, 98,140.56 and 39,282.32

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Solution

The fourth proportional to 71,112.98, 98,140.56 and 39,282.32 is: 54,212.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,112.98 : 98,140.56 = 39,282.32 : x
  2. Step 2: Convert to fraction form
    71,112.98/98,140.56 = 39,282.32/x
  3. Step 3: Cross multiply
    71,112.98x = 98,140.56 × 39,282.32
  4. Step 4: Simplify right side
    71,112.98x = 3,855,188,882.90
  5. Step 5: Solve for x
    x = 3,855,188,882.90/71,112.98
  6. Step 6: Final answer
    x = 54,212.17

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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.