Home / 71,211.70-98,268.02-39,378.52

Finding the Fourth Proportional to 71,211.70, 98,268.02 and 39,378.52

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Solution

The fourth proportional to 71,211.70, 98,268.02 and 39,378.52 is: 54,340.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,211.70 : 98,268.02 = 39,378.52 : x
  2. Step 2: Convert to fraction form
    71,211.70/98,268.02 = 39,378.52/x
  3. Step 3: Cross multiply
    71,211.70x = 98,268.02 × 39,378.52
  4. Step 4: Simplify right side
    71,211.70x = 3,869,649,190.93
  5. Step 5: Solve for x
    x = 3,869,649,190.93/71,211.70
  6. Step 6: Final answer
    x = 54,340.08

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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.