Home / 74,778.45-112,188.84-30,437.02

Finding the Fourth Proportional to 74,778.45, 112,188.84 and 30,437.02

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Solution

The fourth proportional to 74,778.45, 112,188.84 and 30,437.02 is: 45,664.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,778.45 : 112,188.84 = 30,437.02 : x
  2. Step 2: Convert to fraction form
    74,778.45/112,188.84 = 30,437.02/x
  3. Step 3: Cross multiply
    74,778.45x = 112,188.84 × 30,437.02
  4. Step 4: Simplify right side
    74,778.45x = 3,414,693,966.86
  5. Step 5: Solve for x
    x = 3,414,693,966.86/74,778.45
  6. Step 6: Final answer
    x = 45,664.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.