Home / 78,366.12-117,569.07-36,276.57

Finding the Fourth Proportional to 78,366.12, 117,569.07 and 36,276.57

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Solution

The fourth proportional to 78,366.12, 117,569.07 and 36,276.57 is: 54,424.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,366.12 : 117,569.07 = 36,276.57 : x
  2. Step 2: Convert to fraction form
    78,366.12/117,569.07 = 36,276.57/x
  3. Step 3: Cross multiply
    78,366.12x = 117,569.07 × 36,276.57
  4. Step 4: Simplify right side
    78,366.12x = 4,265,002,009.84
  5. Step 5: Solve for x
    x = 4,265,002,009.84/78,366.12
  6. Step 6: Final answer
    x = 54,424.05

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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.