Home / 65,865.15-98,603.63-40,824.61

Finding the Fourth Proportional to 65,865.15, 98,603.63 and 40,824.61

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Solution

The fourth proportional to 65,865.15, 98,603.63 and 40,824.61 is: 61,116.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,865.15 : 98,603.63 = 40,824.61 : x
  2. Step 2: Convert to fraction form
    65,865.15/98,603.63 = 40,824.61/x
  3. Step 3: Cross multiply
    65,865.15x = 98,603.63 × 40,824.61
  4. Step 4: Simplify right side
    65,865.15x = 4,025,454,441.79
  5. Step 5: Solve for x
    x = 4,025,454,441.79/65,865.15
  6. Step 6: Final answer
    x = 61,116.61

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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.