Home / 74,257.74-102,611.25-54,079.34

Finding the Fourth Proportional to 74,257.74, 102,611.25 and 54,079.34

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Solution

The fourth proportional to 74,257.74, 102,611.25 and 54,079.34 is: 74,728.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,257.74 : 102,611.25 = 54,079.34 : x
  2. Step 2: Convert to fraction form
    74,257.74/102,611.25 = 54,079.34/x
  3. Step 3: Cross multiply
    74,257.74x = 102,611.25 × 54,079.34
  4. Step 4: Simplify right side
    74,257.74x = 5,549,148,163.52
  5. Step 5: Solve for x
    x = 5,549,148,163.52/74,257.74
  6. Step 6: Final answer
    x = 74,728.21

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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.