Home / 49,390.86-74,094.12-21,318.96

Finding the Fourth Proportional to 49,390.86, 74,094.12 and 21,318.96

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Solution

The fourth proportional to 49,390.86, 74,094.12 and 21,318.96 is: 31,981.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,390.86 : 74,094.12 = 21,318.96 : x
  2. Step 2: Convert to fraction form
    49,390.86/74,094.12 = 21,318.96/x
  3. Step 3: Cross multiply
    49,390.86x = 74,094.12 × 21,318.96
  4. Step 4: Simplify right side
    49,390.86x = 1,579,609,580.52
  5. Step 5: Solve for x
    x = 1,579,609,580.52/49,390.86
  6. Step 6: Final answer
    x = 31,981.82

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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.