Home / 54,294.72-74,925.99-30,421.86

Finding the Fourth Proportional to 54,294.72, 74,925.99 and 30,421.86

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Solution

The fourth proportional to 54,294.72, 74,925.99 and 30,421.86 is: 41,981.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,294.72 : 74,925.99 = 30,421.86 : x
  2. Step 2: Convert to fraction form
    54,294.72/74,925.99 = 30,421.86/x
  3. Step 3: Cross multiply
    54,294.72x = 74,925.99 × 30,421.86
  4. Step 4: Simplify right side
    54,294.72x = 2,279,387,978.14
  5. Step 5: Solve for x
    x = 2,279,387,978.14/54,294.72
  6. Step 6: Final answer
    x = 41,981.76

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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.