Home / 65,717.10-98,575.65-30,660.30

Finding the Fourth Proportional to 65,717.10, 98,575.65 and 30,660.30

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Solution

The fourth proportional to 65,717.10, 98,575.65 and 30,660.30 is: 45,990.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,717.10 : 98,575.65 = 30,660.30 : x
  2. Step 2: Convert to fraction form
    65,717.10/98,575.65 = 30,660.30/x
  3. Step 3: Cross multiply
    65,717.10x = 98,575.65 × 30,660.30
  4. Step 4: Simplify right side
    65,717.10x = 3,022,359,001.70
  5. Step 5: Solve for x
    x = 3,022,359,001.70/65,717.10
  6. Step 6: Final answer
    x = 45,990.45

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1.5x scale

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.