Home / 56,904-78,265.08-49,818.12

Finding the Fourth Proportional to 56,904, 78,265.08 and 49,818.12

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Solution

The fourth proportional to 56,904, 78,265.08 and 49,818.12 is: 68,519.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,904 : 78,265.08 = 49,818.12 : x
  2. Step 2: Convert to fraction form
    56,904/78,265.08 = 49,818.12/x
  3. Step 3: Cross multiply
    56,904x = 78,265.08 × 49,818.12
  4. Step 4: Simplify right side
    56,904x = 3,899,019,147.25
  5. Step 5: Solve for x
    x = 3,899,019,147.25/56,904
  6. Step 6: Final answer
    x = 68,519.25

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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.