Home / 74,538.28-102,863.65-40,546.86

Finding the Fourth Proportional to 74,538.28, 102,863.65 and 40,546.86

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Solution

The fourth proportional to 74,538.28, 102,863.65 and 40,546.86 is: 55,955.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,538.28 : 102,863.65 = 40,546.86 : x
  2. Step 2: Convert to fraction form
    74,538.28/102,863.65 = 40,546.86/x
  3. Step 3: Cross multiply
    74,538.28x = 102,863.65 × 40,546.86
  4. Step 4: Simplify right side
    74,538.28x = 4,170,798,069.13
  5. Step 5: Solve for x
    x = 4,170,798,069.13/74,538.28
  6. Step 6: Final answer
    x = 55,955.11

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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.