Home / 71,188.07-98,241.58-39,359.02

Finding the Fourth Proportional to 71,188.07, 98,241.58 and 39,359.02

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Solution

The fourth proportional to 71,188.07, 98,241.58 and 39,359.02 is: 54,316.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,188.07 : 98,241.58 = 39,359.02 : x
  2. Step 2: Convert to fraction form
    71,188.07/98,241.58 = 39,359.02/x
  3. Step 3: Cross multiply
    71,188.07x = 98,241.58 × 39,359.02
  4. Step 4: Simplify right side
    71,188.07x = 3,866,691,820.84
  5. Step 5: Solve for x
    x = 3,866,691,820.84/71,188.07
  6. Step 6: Final answer
    x = 54,316.57

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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.