Home / 65,780.04-98,661.86-38,777.88

Finding the Fourth Proportional to 65,780.04, 98,661.86 and 38,777.88

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Solution

The fourth proportional to 65,780.04, 98,661.86 and 38,777.88 is: 58,161.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,780.04 : 98,661.86 = 38,777.88 : x
  2. Step 2: Convert to fraction form
    65,780.04/98,661.86 = 38,777.88/x
  3. Step 3: Cross multiply
    65,780.04x = 98,661.86 × 38,777.88
  4. Step 4: Simplify right side
    65,780.04x = 3,825,897,767.66
  5. Step 5: Solve for x
    x = 3,825,897,767.66/65,780.04
  6. Step 6: Final answer
    x = 58,161.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.