Home / 71,280.41-98,370.01-39,449.30

Finding the Fourth Proportional to 71,280.41, 98,370.01 and 39,449.30

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Solution

The fourth proportional to 71,280.41, 98,370.01 and 39,449.30 is: 54,441.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,280.41 : 98,370.01 = 39,449.30 : x
  2. Step 2: Convert to fraction form
    71,280.41/98,370.01 = 39,449.30/x
  3. Step 3: Cross multiply
    71,280.41x = 98,370.01 × 39,449.30
  4. Step 4: Simplify right side
    71,280.41x = 3,880,627,592.95
  5. Step 5: Solve for x
    x = 3,880,627,592.95/71,280.41
  6. Step 6: Final answer
    x = 54,441.72

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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.