Home / 75,026.10-103,487.12-48,126

Finding the Fourth Proportional to 75,026.10, 103,487.12 and 48,126

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Solution

The fourth proportional to 75,026.10, 103,487.12 and 48,126 is: 66,382.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,026.10 : 103,487.12 = 48,126 : x
  2. Step 2: Convert to fraction form
    75,026.10/103,487.12 = 48,126/x
  3. Step 3: Cross multiply
    75,026.10x = 103,487.12 × 48,126
  4. Step 4: Simplify right side
    75,026.10x = 4,980,421,137.12
  5. Step 5: Solve for x
    x = 4,980,421,137.12/75,026.10
  6. Step 6: Final answer
    x = 66,382.51

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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.