Home / 71,287.26-98,378.46-39,459.12

Finding the Fourth Proportional to 71,287.26, 98,378.46 and 39,459.12

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Solution

The fourth proportional to 71,287.26, 98,378.46 and 39,459.12 is: 54,454.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,287.26 : 98,378.46 = 39,459.12 : x
  2. Step 2: Convert to fraction form
    71,287.26/98,378.46 = 39,459.12/x
  3. Step 3: Cross multiply
    71,287.26x = 98,378.46 × 39,459.12
  4. Step 4: Simplify right side
    71,287.26x = 3,881,927,458.56
  5. Step 5: Solve for x
    x = 3,881,927,458.56/71,287.26
  6. Step 6: Final answer
    x = 54,454.72

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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.