Home / 74,508.20-102,796.15-42,239.36

Finding the Fourth Proportional to 74,508.20, 102,796.15 and 42,239.36

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Solution

The fourth proportional to 74,508.20, 102,796.15 and 42,239.36 is: 58,276.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,508.20 : 102,796.15 = 42,239.36 : x
  2. Step 2: Convert to fraction form
    74,508.20/102,796.15 = 42,239.36/x
  3. Step 3: Cross multiply
    74,508.20x = 102,796.15 × 42,239.36
  4. Step 4: Simplify right side
    74,508.20x = 4,342,043,586.46
  5. Step 5: Solve for x
    x = 4,342,043,586.46/74,508.20
  6. Step 6: Final answer
    x = 58,276.05

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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.