Home / 51,557.20-77,345.54-18,273.40

Finding the Fourth Proportional to 51,557.20, 77,345.54 and 18,273.40

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Solution

The fourth proportional to 51,557.20, 77,345.54 and 18,273.40 is: 27,413.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,557.20 : 77,345.54 = 18,273.40 : x
  2. Step 2: Convert to fraction form
    51,557.20/77,345.54 = 18,273.40/x
  3. Step 3: Cross multiply
    51,557.20x = 77,345.54 × 18,273.40
  4. Step 4: Simplify right side
    51,557.20x = 1,413,365,990.64
  5. Step 5: Solve for x
    x = 1,413,365,990.64/51,557.20
  6. Step 6: Final answer
    x = 27,413.55

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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.