Home / 52,493.28-78,739.60-19,215.66

Finding the Fourth Proportional to 52,493.28, 78,739.60 and 19,215.66

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Solution

The fourth proportional to 52,493.28, 78,739.60 and 19,215.66 is: 28,823.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,493.28 : 78,739.60 = 19,215.66 : x
  2. Step 2: Convert to fraction form
    52,493.28/78,739.60 = 19,215.66/x
  3. Step 3: Cross multiply
    52,493.28x = 78,739.60 × 19,215.66
  4. Step 4: Simplify right side
    52,493.28x = 1,513,033,382.14
  5. Step 5: Solve for x
    x = 1,513,033,382.14/52,493.28
  6. Step 6: Final answer
    x = 28,823.37

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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.