Home / 78,117.24-107,743.44-50,899.32

Finding the Fourth Proportional to 78,117.24, 107,743.44 and 50,899.32

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Solution

The fourth proportional to 78,117.24, 107,743.44 and 50,899.32 is: 70,203.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,117.24 : 107,743.44 = 50,899.32 : x
  2. Step 2: Convert to fraction form
    78,117.24/107,743.44 = 50,899.32/x
  3. Step 3: Cross multiply
    78,117.24x = 107,743.44 × 50,899.32
  4. Step 4: Simplify right side
    78,117.24x = 5,484,067,830.46
  5. Step 5: Solve for x
    x = 5,484,067,830.46/78,117.24
  6. Step 6: Final answer
    x = 70,203.04

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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.