Home / 74,135.61-102,314.46-42,309.27

Finding the Fourth Proportional to 74,135.61, 102,314.46 and 42,309.27

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Solution

The fourth proportional to 74,135.61, 102,314.46 and 42,309.27 is: 58,390.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,135.61 : 102,314.46 = 42,309.27 : x
  2. Step 2: Convert to fraction form
    74,135.61/102,314.46 = 42,309.27/x
  3. Step 3: Cross multiply
    74,135.61x = 102,314.46 × 42,309.27
  4. Step 4: Simplify right side
    74,135.61x = 4,328,850,113.04
  5. Step 5: Solve for x
    x = 4,328,850,113.04/74,135.61
  6. Step 6: Final answer
    x = 58,390.97

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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.