Home / 75,979.36-113,925-36,482.56

Finding the Fourth Proportional to 75,979.36, 113,925 and 36,482.56

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Solution

The fourth proportional to 75,979.36, 113,925 and 36,482.56 is: 54,702.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,979.36 : 113,925 = 36,482.56 : x
  2. Step 2: Convert to fraction form
    75,979.36/113,925 = 36,482.56/x
  3. Step 3: Cross multiply
    75,979.36x = 113,925 × 36,482.56
  4. Step 4: Simplify right side
    75,979.36x = 4,156,275,648.00
  5. Step 5: Solve for x
    x = 4,156,275,648.00/75,979.36
  6. Step 6: Final answer
    x = 54,702.69

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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.