Home / 54,390.42-81,582.39-16,438.95

Finding the Fourth Proportional to 54,390.42, 81,582.39 and 16,438.95

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Solution

The fourth proportional to 54,390.42, 81,582.39 and 16,438.95 is: 24,657.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,390.42 : 81,582.39 = 16,438.95 : x
  2. Step 2: Convert to fraction form
    54,390.42/81,582.39 = 16,438.95/x
  3. Step 3: Cross multiply
    54,390.42x = 81,582.39 × 16,438.95
  4. Step 4: Simplify right side
    54,390.42x = 1,341,128,830.09
  5. Step 5: Solve for x
    x = 1,341,128,830.09/54,390.42
  6. Step 6: Final answer
    x = 24,657.45

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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.