Home / 65,929.68-90,983.04-39,085.32

Finding the Fourth Proportional to 65,929.68, 90,983.04 and 39,085.32

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Solution

The fourth proportional to 65,929.68, 90,983.04 and 39,085.32 is: 53,937.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,929.68 : 90,983.04 = 39,085.32 : x
  2. Step 2: Convert to fraction form
    65,929.68/90,983.04 = 39,085.32/x
  3. Step 3: Cross multiply
    65,929.68x = 90,983.04 × 39,085.32
  4. Step 4: Simplify right side
    65,929.68x = 3,556,101,232.97
  5. Step 5: Solve for x
    x = 3,556,101,232.97/65,929.68
  6. Step 6: Final answer
    x = 53,937.79

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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.