Home / 75,402.16-113,129.10-47,288.26

Finding the Fourth Proportional to 75,402.16, 113,129.10 and 47,288.26

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Solution

The fourth proportional to 75,402.16, 113,129.10 and 47,288.26 is: 70,948.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,402.16 : 113,129.10 = 47,288.26 : x
  2. Step 2: Convert to fraction form
    75,402.16/113,129.10 = 47,288.26/x
  3. Step 3: Cross multiply
    75,402.16x = 113,129.10 × 47,288.26
  4. Step 4: Simplify right side
    75,402.16x = 5,349,678,294.37
  5. Step 5: Solve for x
    x = 5,349,678,294.37/75,402.16
  6. Step 6: Final answer
    x = 70,948.61

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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.