Home / 71,043.02-98,032.38-39,209.87

Finding the Fourth Proportional to 71,043.02, 98,032.38 and 39,209.87

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Solution

The fourth proportional to 71,043.02, 98,032.38 and 39,209.87 is: 54,105.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,043.02 : 98,032.38 = 39,209.87 : x
  2. Step 2: Convert to fraction form
    71,043.02/98,032.38 = 39,209.87/x
  3. Step 3: Cross multiply
    71,043.02x = 98,032.38 × 39,209.87
  4. Step 4: Simplify right side
    71,043.02x = 3,843,836,385.43
  5. Step 5: Solve for x
    x = 3,843,836,385.43/71,043.02
  6. Step 6: Final answer
    x = 54,105.76

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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.