Home / 78,548.24-108,397.04-42,738.52

Finding the Fourth Proportional to 78,548.24, 108,397.04 and 42,738.52

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Solution

The fourth proportional to 78,548.24, 108,397.04 and 42,738.52 is: 58,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,548.24 : 108,397.04 = 42,738.52 : x
  2. Step 2: Convert to fraction form
    78,548.24/108,397.04 = 42,738.52/x
  3. Step 3: Cross multiply
    78,548.24x = 108,397.04 × 42,738.52
  4. Step 4: Simplify right side
    78,548.24x = 4,632,729,061.98
  5. Step 5: Solve for x
    x = 4,632,729,061.98/78,548.24
  6. Step 6: Final answer
    x = 58,979.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.