Home / 77,115.61-106,388.22-50,248.31

Finding the Fourth Proportional to 77,115.61, 106,388.22 and 50,248.31

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Solution

The fourth proportional to 77,115.61, 106,388.22 and 50,248.31 is: 69,322.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,115.61 : 106,388.22 = 50,248.31 : x
  2. Step 2: Convert to fraction form
    77,115.61/106,388.22 = 50,248.31/x
  3. Step 3: Cross multiply
    77,115.61x = 106,388.22 × 50,248.31
  4. Step 4: Simplify right side
    77,115.61x = 5,345,828,258.91
  5. Step 5: Solve for x
    x = 5,345,828,258.91/77,115.61
  6. Step 6: Final answer
    x = 69,322.26

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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.