Home / 54,321.42-74,956.95-30,442.98

Finding the Fourth Proportional to 54,321.42, 74,956.95 and 30,442.98

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Solution

The fourth proportional to 54,321.42, 74,956.95 and 30,442.98 is: 42,007.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,321.42 : 74,956.95 = 30,442.98 : x
  2. Step 2: Convert to fraction form
    54,321.42/74,956.95 = 30,442.98/x
  3. Step 3: Cross multiply
    54,321.42x = 74,956.95 × 30,442.98
  4. Step 4: Simplify right side
    54,321.42x = 2,281,912,929.71
  5. Step 5: Solve for x
    x = 2,281,912,929.71/54,321.42
  6. Step 6: Final answer
    x = 42,007.61

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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.