Home / 65,200.08-97,791.90-20,831.52

Finding the Fourth Proportional to 65,200.08, 97,791.90 and 20,831.52

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Solution

The fourth proportional to 65,200.08, 97,791.90 and 20,831.52 is: 31,244.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,200.08 : 97,791.90 = 20,831.52 : x
  2. Step 2: Convert to fraction form
    65,200.08/97,791.90 = 20,831.52/x
  3. Step 3: Cross multiply
    65,200.08x = 97,791.90 × 20,831.52
  4. Step 4: Simplify right side
    65,200.08x = 2,037,153,920.69
  5. Step 5: Solve for x
    x = 2,037,153,920.69/65,200.08
  6. Step 6: Final answer
    x = 31,244.65

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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.