Home / 74,857.40-112,188.60-30,432.32

Finding the Fourth Proportional to 74,857.40, 112,188.60 and 30,432.32

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Solution

The fourth proportional to 74,857.40, 112,188.60 and 30,432.32 is: 45,608.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,857.40 : 112,188.60 = 30,432.32 : x
  2. Step 2: Convert to fraction form
    74,857.40/112,188.60 = 30,432.32/x
  3. Step 3: Cross multiply
    74,857.40x = 112,188.60 × 30,432.32
  4. Step 4: Simplify right side
    74,857.40x = 3,414,159,375.55
  5. Step 5: Solve for x
    x = 3,414,159,375.55/74,857.40
  6. Step 6: Final answer
    x = 45,608.84

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1.5x scale

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.