Home / 45,421.24-68,140.97-15,831.13

Finding the Fourth Proportional to 45,421.24, 68,140.97 and 15,831.13

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Solution

The fourth proportional to 45,421.24, 68,140.97 and 15,831.13 is: 23,749.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,421.24 : 68,140.97 = 15,831.13 : x
  2. Step 2: Convert to fraction form
    45,421.24/68,140.97 = 15,831.13/x
  3. Step 3: Cross multiply
    45,421.24x = 68,140.97 × 15,831.13
  4. Step 4: Simplify right side
    45,421.24x = 1,078,748,134.54
  5. Step 5: Solve for x
    x = 1,078,748,134.54/45,421.24
  6. Step 6: Final answer
    x = 23,749.86

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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.