Home / 71,528.94-98,711.73-39,697.02

Finding the Fourth Proportional to 71,528.94, 98,711.73 and 39,697.02

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Solution

The fourth proportional to 71,528.94, 98,711.73 and 39,697.02 is: 54,782.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,528.94 : 98,711.73 = 39,697.02 : x
  2. Step 2: Convert to fraction form
    71,528.94/98,711.73 = 39,697.02/x
  3. Step 3: Cross multiply
    71,528.94x = 98,711.73 × 39,697.02
  4. Step 4: Simplify right side
    71,528.94x = 3,918,561,520.04
  5. Step 5: Solve for x
    x = 3,918,561,520.04/71,528.94
  6. Step 6: Final answer
    x = 54,782.88

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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.