Home / 64,768.29-97,155.89-20,398.49

Finding the Fourth Proportional to 64,768.29, 97,155.89 and 20,398.49

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Solution

The fourth proportional to 64,768.29, 97,155.89 and 20,398.49 is: 30,598.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,768.29 : 97,155.89 = 20,398.49 : x
  2. Step 2: Convert to fraction form
    64,768.29/97,155.89 = 20,398.49/x
  3. Step 3: Cross multiply
    64,768.29x = 97,155.89 × 20,398.49
  4. Step 4: Simplify right side
    64,768.29x = 1,981,833,450.61
  5. Step 5: Solve for x
    x = 1,981,833,450.61/64,768.29
  6. Step 6: Final answer
    x = 30,598.82

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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.