Home / 64,442-88,945.32-39,312.56

Finding the Fourth Proportional to 64,442, 88,945.32 and 39,312.56

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Solution

The fourth proportional to 64,442, 88,945.32 and 39,312.56 is: 54,260.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,442 : 88,945.32 = 39,312.56 : x
  2. Step 2: Convert to fraction form
    64,442/88,945.32 = 39,312.56/x
  3. Step 3: Cross multiply
    64,442x = 88,945.32 × 39,312.56
  4. Step 4: Simplify right side
    64,442x = 3,496,668,229.22
  5. Step 5: Solve for x
    x = 3,496,668,229.22/64,442
  6. Step 6: Final answer
    x = 54,260.70

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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.