Home / 78,408.19-108,209.89-44,427.48

Finding the Fourth Proportional to 78,408.19, 108,209.89 and 44,427.48

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Solution

The fourth proportional to 78,408.19, 108,209.89 and 44,427.48 is: 61,313.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,408.19 : 108,209.89 = 44,427.48 : x
  2. Step 2: Convert to fraction form
    78,408.19/108,209.89 = 44,427.48/x
  3. Step 3: Cross multiply
    78,408.19x = 108,209.89 × 44,427.48
  4. Step 4: Simplify right side
    78,408.19x = 4,807,492,723.78
  5. Step 5: Solve for x
    x = 4,807,492,723.78/78,408.19
  6. Step 6: Final answer
    x = 61,313.66

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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.