Home / 65,856.74-98,781.62-18,475.10

Finding the Fourth Proportional to 65,856.74, 98,781.62 and 18,475.10

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Solution

The fourth proportional to 65,856.74, 98,781.62 and 18,475.10 is: 27,711.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,856.74 : 98,781.62 = 18,475.10 : x
  2. Step 2: Convert to fraction form
    65,856.74/98,781.62 = 18,475.10/x
  3. Step 3: Cross multiply
    65,856.74x = 98,781.62 × 18,475.10
  4. Step 4: Simplify right side
    65,856.74x = 1,825,000,307.66
  5. Step 5: Solve for x
    x = 1,825,000,307.66/65,856.74
  6. Step 6: Final answer
    x = 27,711.67

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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.