Home / 78,772.95-108,717.12-50,095.32

Finding the Fourth Proportional to 78,772.95, 108,717.12 and 50,095.32

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Solution

The fourth proportional to 78,772.95, 108,717.12 and 50,095.32 is: 69,138.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,772.95 : 108,717.12 = 50,095.32 : x
  2. Step 2: Convert to fraction form
    78,772.95/108,717.12 = 50,095.32/x
  3. Step 3: Cross multiply
    78,772.95x = 108,717.12 × 50,095.32
  4. Step 4: Simplify right side
    78,772.95x = 5,446,218,915.88
  5. Step 5: Solve for x
    x = 5,446,218,915.88/78,772.95
  6. Step 6: Final answer
    x = 69,138.19

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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.