Home / 52,443.66-78,618.26-19,140.36

Finding the Fourth Proportional to 52,443.66, 78,618.26 and 19,140.36

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Solution

The fourth proportional to 52,443.66, 78,618.26 and 19,140.36 is: 28,693.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,443.66 : 78,618.26 = 19,140.36 : x
  2. Step 2: Convert to fraction form
    52,443.66/78,618.26 = 19,140.36/x
  3. Step 3: Cross multiply
    52,443.66x = 78,618.26 × 19,140.36
  4. Step 4: Simplify right side
    52,443.66x = 1,504,781,798.97
  5. Step 5: Solve for x
    x = 1,504,781,798.97/52,443.66
  6. Step 6: Final answer
    x = 28,693.30

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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.