Home / 52,309.86-78,464.82-12,867.72

Finding the Fourth Proportional to 52,309.86, 78,464.82 and 12,867.72

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Solution

The fourth proportional to 52,309.86, 78,464.82 and 12,867.72 is: 19,301.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,309.86 : 78,464.82 = 12,867.72 : x
  2. Step 2: Convert to fraction form
    52,309.86/78,464.82 = 12,867.72/x
  3. Step 3: Cross multiply
    52,309.86x = 78,464.82 × 12,867.72
  4. Step 4: Simplify right side
    52,309.86x = 1,009,663,333.61
  5. Step 5: Solve for x
    x = 1,009,663,333.61/52,309.86
  6. Step 6: Final answer
    x = 19,301.59

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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.