Home / 71,341.28-98,453.92-39,510.20

Finding the Fourth Proportional to 71,341.28, 98,453.92 and 39,510.20

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Solution

The fourth proportional to 71,341.28, 98,453.92 and 39,510.20 is: 54,525.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,341.28 : 98,453.92 = 39,510.20 : x
  2. Step 2: Convert to fraction form
    71,341.28/98,453.92 = 39,510.20/x
  3. Step 3: Cross multiply
    71,341.28x = 98,453.92 × 39,510.20
  4. Step 4: Simplify right side
    71,341.28x = 3,889,934,069.98
  5. Step 5: Solve for x
    x = 3,889,934,069.98/71,341.28
  6. Step 6: Final answer
    x = 54,525.71

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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.