Home / 75,234.10-103,870.28-48,423.20

Finding the Fourth Proportional to 75,234.10, 103,870.28 and 48,423.20

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Solution

The fourth proportional to 75,234.10, 103,870.28 and 48,423.20 is: 66,854.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,234.10 : 103,870.28 = 48,423.20 : x
  2. Step 2: Convert to fraction form
    75,234.10/103,870.28 = 48,423.20/x
  3. Step 3: Cross multiply
    75,234.10x = 103,870.28 × 48,423.20
  4. Step 4: Simplify right side
    75,234.10x = 5,029,731,342.50
  5. Step 5: Solve for x
    x = 5,029,731,342.50/75,234.10
  6. Step 6: Final answer
    x = 66,854.41

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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.