Home / 71,696.04-98,938.50-39,864.36

Finding the Fourth Proportional to 71,696.04, 98,938.50 and 39,864.36

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Solution

The fourth proportional to 71,696.04, 98,938.50 and 39,864.36 is: 55,011.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,696.04 : 98,938.50 = 39,864.36 : x
  2. Step 2: Convert to fraction form
    71,696.04/98,938.50 = 39,864.36/x
  3. Step 3: Cross multiply
    71,696.04x = 98,938.50 × 39,864.36
  4. Step 4: Simplify right side
    71,696.04x = 3,944,119,981.86
  5. Step 5: Solve for x
    x = 3,944,119,981.86/71,696.04
  6. Step 6: Final answer
    x = 55,011.69

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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.