Home / 50,979.36-70,349.13-28,319.79

Finding the Fourth Proportional to 50,979.36, 70,349.13 and 28,319.79

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Solution

The fourth proportional to 50,979.36, 70,349.13 and 28,319.79 is: 39,079.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,979.36 : 70,349.13 = 28,319.79 : x
  2. Step 2: Convert to fraction form
    50,979.36/70,349.13 = 28,319.79/x
  3. Step 3: Cross multiply
    50,979.36x = 70,349.13 × 28,319.79
  4. Step 4: Simplify right side
    50,979.36x = 1,992,272,588.28
  5. Step 5: Solve for x
    x = 1,992,272,588.28/50,979.36
  6. Step 6: Final answer
    x = 39,079.98

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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.