Home / 75,426.12-113,182.70-40,385.32

Finding the Fourth Proportional to 75,426.12, 113,182.70 and 40,385.32

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Solution

The fourth proportional to 75,426.12, 113,182.70 and 40,385.32 is: 60,601.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,426.12 : 113,182.70 = 40,385.32 : x
  2. Step 2: Convert to fraction form
    75,426.12/113,182.70 = 40,385.32/x
  3. Step 3: Cross multiply
    75,426.12x = 113,182.70 × 40,385.32
  4. Step 4: Simplify right side
    75,426.12x = 4,570,919,557.96
  5. Step 5: Solve for x
    x = 4,570,919,557.96/75,426.12
  6. Step 6: Final answer
    x = 60,601.28

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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.