Home / 55,869-77,099.24-30,718.52

Finding the Fourth Proportional to 55,869, 77,099.24 and 30,718.52

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Solution

The fourth proportional to 55,869, 77,099.24 and 30,718.52 is: 42,391.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,869 : 77,099.24 = 30,718.52 : x
  2. Step 2: Convert to fraction form
    55,869/77,099.24 = 30,718.52/x
  3. Step 3: Cross multiply
    55,869x = 77,099.24 × 30,718.52
  4. Step 4: Simplify right side
    55,869x = 2,368,374,545.92
  5. Step 5: Solve for x
    x = 2,368,374,545.92/55,869
  6. Step 6: Final answer
    x = 42,391.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.