Home / 71,699.04-98,946.96-39,869.28

Finding the Fourth Proportional to 71,699.04, 98,946.96 and 39,869.28

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Solution

The fourth proportional to 71,699.04, 98,946.96 and 39,869.28 is: 55,020.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,699.04 : 98,946.96 = 39,869.28 : x
  2. Step 2: Convert to fraction form
    71,699.04/98,946.96 = 39,869.28/x
  3. Step 3: Cross multiply
    71,699.04x = 98,946.96 × 39,869.28
  4. Step 4: Simplify right side
    71,699.04x = 3,944,944,053.39
  5. Step 5: Solve for x
    x = 3,944,944,053.39/71,699.04
  6. Step 6: Final answer
    x = 55,020.88

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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.