Home / 75,970.72-113,989.44-40,423.66

Finding the Fourth Proportional to 75,970.72, 113,989.44 and 40,423.66

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Solution

The fourth proportional to 75,970.72, 113,989.44 and 40,423.66 is: 60,653.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,970.72 : 113,989.44 = 40,423.66 : x
  2. Step 2: Convert to fraction form
    75,970.72/113,989.44 = 40,423.66/x
  3. Step 3: Cross multiply
    75,970.72x = 113,989.44 × 40,423.66
  4. Step 4: Simplify right side
    75,970.72x = 4,607,870,366.15
  5. Step 5: Solve for x
    x = 4,607,870,366.15/75,970.72
  6. Step 6: Final answer
    x = 60,653.24

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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.