Home / 51,690.24-77,547.12-18,413.82

Finding the Fourth Proportional to 51,690.24, 77,547.12 and 18,413.82

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Solution

The fourth proportional to 51,690.24, 77,547.12 and 18,413.82 is: 27,624.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,690.24 : 77,547.12 = 18,413.82 : x
  2. Step 2: Convert to fraction form
    51,690.24/77,547.12 = 18,413.82/x
  3. Step 3: Cross multiply
    51,690.24x = 77,547.12 × 18,413.82
  4. Step 4: Simplify right side
    51,690.24x = 1,427,938,709.20
  5. Step 5: Solve for x
    x = 1,427,938,709.20/51,690.24
  6. Step 6: Final answer
    x = 27,624.92

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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.