Home / 71,019.48-98,002.74-39,188.30

Finding the Fourth Proportional to 71,019.48, 98,002.74 and 39,188.30

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Solution

The fourth proportional to 71,019.48, 98,002.74 and 39,188.30 is: 54,077.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,019.48 : 98,002.74 = 39,188.30 : x
  2. Step 2: Convert to fraction form
    71,019.48/98,002.74 = 39,188.30/x
  3. Step 3: Cross multiply
    71,019.48x = 98,002.74 × 39,188.30
  4. Step 4: Simplify right side
    71,019.48x = 3,840,560,775.94
  5. Step 5: Solve for x
    x = 3,840,560,775.94/71,019.48
  6. Step 6: Final answer
    x = 54,077.57

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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.