Home / 83,347.08-115,018.08-45,105.81

Finding the Fourth Proportional to 83,347.08, 115,018.08 and 45,105.81

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Solution

The fourth proportional to 83,347.08, 115,018.08 and 45,105.81 is: 62,245.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,347.08 : 115,018.08 = 45,105.81 : x
  2. Step 2: Convert to fraction form
    83,347.08/115,018.08 = 45,105.81/x
  3. Step 3: Cross multiply
    83,347.08x = 115,018.08 × 45,105.81
  4. Step 4: Simplify right side
    83,347.08x = 5,187,983,709.56
  5. Step 5: Solve for x
    x = 5,187,983,709.56/83,347.08
  6. Step 6: Final answer
    x = 62,245.54

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1.5x scale

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.