Home / 74,236.66-102,435.42-42,398.80

Finding the Fourth Proportional to 74,236.66, 102,435.42 and 42,398.80

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Solution

The fourth proportional to 74,236.66, 102,435.42 and 42,398.80 is: 58,503.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,236.66 : 102,435.42 = 42,398.80 : x
  2. Step 2: Convert to fraction form
    74,236.66/102,435.42 = 42,398.80/x
  3. Step 3: Cross multiply
    74,236.66x = 102,435.42 × 42,398.80
  4. Step 4: Simplify right side
    74,236.66x = 4,343,138,885.50
  5. Step 5: Solve for x
    x = 4,343,138,885.50/74,236.66
  6. Step 6: Final answer
    x = 58,503.96

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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.