Home / 64,641.29-89,161.12-41,939.72

Finding the Fourth Proportional to 64,641.29, 89,161.12 and 41,939.72

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Solution

The fourth proportional to 64,641.29, 89,161.12 and 41,939.72 is: 57,848.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,641.29 : 89,161.12 = 41,939.72 : x
  2. Step 2: Convert to fraction form
    64,641.29/89,161.12 = 41,939.72/x
  3. Step 3: Cross multiply
    64,641.29x = 89,161.12 × 41,939.72
  4. Step 4: Simplify right side
    64,641.29x = 3,739,392,348.66
  5. Step 5: Solve for x
    x = 3,739,392,348.66/64,641.29
  6. Step 6: Final answer
    x = 57,848.36

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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.