Home / 64,263.78-88,671.41-40,376.61

Finding the Fourth Proportional to 64,263.78, 88,671.41 and 40,376.61

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Solution

The fourth proportional to 64,263.78, 88,671.41 and 40,376.61 is: 55,711.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,263.78 : 88,671.41 = 40,376.61 : x
  2. Step 2: Convert to fraction form
    64,263.78/88,671.41 = 40,376.61/x
  3. Step 3: Cross multiply
    64,263.78x = 88,671.41 × 40,376.61
  4. Step 4: Simplify right side
    64,263.78x = 3,580,250,838.78
  5. Step 5: Solve for x
    x = 3,580,250,838.78/64,263.78
  6. Step 6: Final answer
    x = 55,711.80

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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.