Home / 75,401.16-113,127.60-47,287.26

Finding the Fourth Proportional to 75,401.16, 113,127.60 and 47,287.26

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Solution

The fourth proportional to 75,401.16, 113,127.60 and 47,287.26 is: 70,947.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,401.16 : 113,127.60 = 47,287.26 : x
  2. Step 2: Convert to fraction form
    75,401.16/113,127.60 = 47,287.26/x
  3. Step 3: Cross multiply
    75,401.16x = 113,127.60 × 47,287.26
  4. Step 4: Simplify right side
    75,401.16x = 5,349,494,234.38
  5. Step 5: Solve for x
    x = 5,349,494,234.38/75,401.16
  6. Step 6: Final answer
    x = 70,947.11

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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.