Home / 80,640.16-111,292.60-44,833.76

Finding the Fourth Proportional to 80,640.16, 111,292.60 and 44,833.76

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Solution

The fourth proportional to 80,640.16, 111,292.60 and 44,833.76 is: 61,875.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,640.16 : 111,292.60 = 44,833.76 : x
  2. Step 2: Convert to fraction form
    80,640.16/111,292.60 = 44,833.76/x
  3. Step 3: Cross multiply
    80,640.16x = 111,292.60 × 44,833.76
  4. Step 4: Simplify right side
    80,640.16x = 4,989,665,718.18
  5. Step 5: Solve for x
    x = 4,989,665,718.18/80,640.16
  6. Step 6: Final answer
    x = 61,875.69

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1.5x scale

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.