Home / 71,528.34-98,707.23-39,696.42

Finding the Fourth Proportional to 71,528.34, 98,707.23 and 39,696.42

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Solution

The fourth proportional to 71,528.34, 98,707.23 and 39,696.42 is: 54,780.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,528.34 : 98,707.23 = 39,696.42 : x
  2. Step 2: Convert to fraction form
    71,528.34/98,707.23 = 39,696.42/x
  3. Step 3: Cross multiply
    71,528.34x = 98,707.23 × 39,696.42
  4. Step 4: Simplify right side
    71,528.34x = 3,918,323,659.12
  5. Step 5: Solve for x
    x = 3,918,323,659.12/71,528.34
  6. Step 6: Final answer
    x = 54,780.02

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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.