Home / 65,246.13-97,876.22-20,857.05

Finding the Fourth Proportional to 65,246.13, 97,876.22 and 20,857.05

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Solution

The fourth proportional to 65,246.13, 97,876.22 and 20,857.05 is: 31,287.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,246.13 : 97,876.22 = 20,857.05 : x
  2. Step 2: Convert to fraction form
    65,246.13/97,876.22 = 20,857.05/x
  3. Step 3: Cross multiply
    65,246.13x = 97,876.22 × 20,857.05
  4. Step 4: Simplify right side
    65,246.13x = 2,041,409,110.07
  5. Step 5: Solve for x
    x = 2,041,409,110.07/65,246.13
  6. Step 6: Final answer
    x = 31,287.82

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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.