Home / 64,712.13-97,061.78-20,337.70

Finding the Fourth Proportional to 64,712.13, 97,061.78 and 20,337.70

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Solution

The fourth proportional to 64,712.13, 97,061.78 and 20,337.70 is: 30,504.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,712.13 : 97,061.78 = 20,337.70 : x
  2. Step 2: Convert to fraction form
    64,712.13/97,061.78 = 20,337.70/x
  3. Step 3: Cross multiply
    64,712.13x = 97,061.78 × 20,337.70
  4. Step 4: Simplify right side
    64,712.13x = 1,974,013,363.11
  5. Step 5: Solve for x
    x = 1,974,013,363.11/64,712.13
  6. Step 6: Final answer
    x = 30,504.53

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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.