Home / 79,588.25-109,831.24-45,139.53

Finding the Fourth Proportional to 79,588.25, 109,831.24 and 45,139.53

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Solution

The fourth proportional to 79,588.25, 109,831.24 and 45,139.53 is: 62,292.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,588.25 : 109,831.24 = 45,139.53 : x
  2. Step 2: Convert to fraction form
    79,588.25/109,831.24 = 45,139.53/x
  3. Step 3: Cross multiply
    79,588.25x = 109,831.24 × 45,139.53
  4. Step 4: Simplify right side
    79,588.25x = 4,957,730,327.22
  5. Step 5: Solve for x
    x = 4,957,730,327.22/79,588.25
  6. Step 6: Final answer
    x = 62,292.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.