Home / 49,639.77-68,518.85-31,782.87

Finding the Fourth Proportional to 49,639.77, 68,518.85 and 31,782.87

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Solution

The fourth proportional to 49,639.77, 68,518.85 and 31,782.87 is: 43,870.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,639.77 : 68,518.85 = 31,782.87 : x
  2. Step 2: Convert to fraction form
    49,639.77/68,518.85 = 31,782.87/x
  3. Step 3: Cross multiply
    49,639.77x = 68,518.85 × 31,782.87
  4. Step 4: Simplify right side
    49,639.77x = 2,177,725,543.19
  5. Step 5: Solve for x
    x = 2,177,725,543.19/49,639.77
  6. Step 6: Final answer
    x = 43,870.58

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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.