Home / 48,458.86-72,688.39-13,398.62

Finding the Fourth Proportional to 48,458.86, 72,688.39 and 13,398.62

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Solution

The fourth proportional to 48,458.86, 72,688.39 and 13,398.62 is: 20,097.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,458.86 : 72,688.39 = 13,398.62 : x
  2. Step 2: Convert to fraction form
    48,458.86/72,688.39 = 13,398.62/x
  3. Step 3: Cross multiply
    48,458.86x = 72,688.39 × 13,398.62
  4. Step 4: Simplify right side
    48,458.86x = 973,923,719.08
  5. Step 5: Solve for x
    x = 973,923,719.08/48,458.86
  6. Step 6: Final answer
    x = 20,097.95

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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.