Home / 78,435.36-117,671.49-25,844.84

Finding the Fourth Proportional to 78,435.36, 117,671.49 and 25,844.84

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Solution

The fourth proportional to 78,435.36, 117,671.49 and 25,844.84 is: 38,773.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,435.36 : 117,671.49 = 25,844.84 : x
  2. Step 2: Convert to fraction form
    78,435.36/117,671.49 = 25,844.84/x
  3. Step 3: Cross multiply
    78,435.36x = 117,671.49 × 25,844.84
  4. Step 4: Simplify right side
    78,435.36x = 3,041,200,831.61
  5. Step 5: Solve for x
    x = 3,041,200,831.61/78,435.36
  6. Step 6: Final answer
    x = 38,773.34

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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.