Home / 78,546.06-108,396.26-42,737.43

Finding the Fourth Proportional to 78,546.06, 108,396.26 and 42,737.43

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Solution

The fourth proportional to 78,546.06, 108,396.26 and 42,737.43 is: 58,979.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,546.06 : 108,396.26 = 42,737.43 : x
  2. Step 2: Convert to fraction form
    78,546.06/108,396.26 = 42,737.43/x
  3. Step 3: Cross multiply
    78,546.06x = 108,396.26 × 42,737.43
  4. Step 4: Simplify right side
    78,546.06x = 4,632,577,574.01
  5. Step 5: Solve for x
    x = 4,632,577,574.01/78,546.06
  6. Step 6: Final answer
    x = 58,979.12

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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.