Home / 52,002.23-78,013.44-19,978.95

Finding the Fourth Proportional to 52,002.23, 78,013.44 and 19,978.95

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Solution

The fourth proportional to 52,002.23, 78,013.44 and 19,978.95 is: 29,972.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,002.23 : 78,013.44 = 19,978.95 : x
  2. Step 2: Convert to fraction form
    52,002.23/78,013.44 = 19,978.95/x
  3. Step 3: Cross multiply
    52,002.23x = 78,013.44 × 19,978.95
  4. Step 4: Simplify right side
    52,002.23x = 1,558,626,617.09
  5. Step 5: Solve for x
    x = 1,558,626,617.09/52,002.23
  6. Step 6: Final answer
    x = 29,972.31

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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.