Home / 77,413.17-116,119.94-21,254.05

Finding the Fourth Proportional to 77,413.17, 116,119.94 and 21,254.05

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Solution

The fourth proportional to 77,413.17, 116,119.94 and 21,254.05 is: 31,881.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,413.17 : 116,119.94 = 21,254.05 : x
  2. Step 2: Convert to fraction form
    77,413.17/116,119.94 = 21,254.05/x
  3. Step 3: Cross multiply
    77,413.17x = 116,119.94 × 21,254.05
  4. Step 4: Simplify right side
    77,413.17x = 2,468,019,010.76
  5. Step 5: Solve for x
    x = 2,468,019,010.76/77,413.17
  6. Step 6: Final answer
    x = 31,881.12

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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.