Home / 64,732.50-89,318.06-40,891.86

Finding the Fourth Proportional to 64,732.50, 89,318.06 and 40,891.86

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Solution

The fourth proportional to 64,732.50, 89,318.06 and 40,891.86 is: 56,422.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,732.50 : 89,318.06 = 40,891.86 : x
  2. Step 2: Convert to fraction form
    64,732.50/89,318.06 = 40,891.86/x
  3. Step 3: Cross multiply
    64,732.50x = 89,318.06 × 40,891.86
  4. Step 4: Simplify right side
    64,732.50x = 3,652,381,604.99
  5. Step 5: Solve for x
    x = 3,652,381,604.99/64,732.50
  6. Step 6: Final answer
    x = 56,422.69

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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.