Home / 78,251.08-117,352.06-25,648.84

Finding the Fourth Proportional to 78,251.08, 117,352.06 and 25,648.84

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Solution

The fourth proportional to 78,251.08, 117,352.06 and 25,648.84 is: 38,465.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,251.08 : 117,352.06 = 25,648.84 : x
  2. Step 2: Convert to fraction form
    78,251.08/117,352.06 = 25,648.84/x
  3. Step 3: Cross multiply
    78,251.08x = 117,352.06 × 25,648.84
  4. Step 4: Simplify right side
    78,251.08x = 3,009,944,210.61
  5. Step 5: Solve for x
    x = 3,009,944,210.61/78,251.08
  6. Step 6: Final answer
    x = 38,465.21

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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.