Home / 52,418.88-78,603.48-19,115.28

Finding the Fourth Proportional to 52,418.88, 78,603.48 and 19,115.28

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Solution

The fourth proportional to 52,418.88, 78,603.48 and 19,115.28 is: 28,663.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,418.88 : 78,603.48 = 19,115.28 : x
  2. Step 2: Convert to fraction form
    52,418.88/78,603.48 = 19,115.28/x
  3. Step 3: Cross multiply
    52,418.88x = 78,603.48 × 19,115.28
  4. Step 4: Simplify right side
    52,418.88x = 1,502,527,529.17
  5. Step 5: Solve for x
    x = 1,502,527,529.17/52,418.88
  6. Step 6: Final answer
    x = 28,663.86

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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.