Home / 52,472.38-78,679.38-21,271.18

Finding the Fourth Proportional to 52,472.38, 78,679.38 and 21,271.18

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Solution

The fourth proportional to 52,472.38, 78,679.38 and 21,271.18 is: 31,894.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,472.38 : 78,679.38 = 21,271.18 : x
  2. Step 2: Convert to fraction form
    52,472.38/78,679.38 = 21,271.18/x
  3. Step 3: Cross multiply
    52,472.38x = 78,679.38 × 21,271.18
  4. Step 4: Simplify right side
    52,472.38x = 1,673,603,254.27
  5. Step 5: Solve for x
    x = 1,673,603,254.27/52,472.38
  6. Step 6: Final answer
    x = 31,894.94

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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.