Home / 71,270.02-98,352.64-39,439.04

Finding the Fourth Proportional to 71,270.02, 98,352.64 and 39,439.04

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Solution

The fourth proportional to 71,270.02, 98,352.64 and 39,439.04 is: 54,425.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,270.02 : 98,352.64 = 39,439.04 : x
  2. Step 2: Convert to fraction form
    71,270.02/98,352.64 = 39,439.04/x
  3. Step 3: Cross multiply
    71,270.02x = 98,352.64 × 39,439.04
  4. Step 4: Simplify right side
    71,270.02x = 3,878,933,703.07
  5. Step 5: Solve for x
    x = 3,878,933,703.07/71,270.02
  6. Step 6: Final answer
    x = 54,425.88

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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.