Home / 50,979.48-70,349.18-28,319.90

Finding the Fourth Proportional to 50,979.48, 70,349.18 and 28,319.90

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Solution

The fourth proportional to 50,979.48, 70,349.18 and 28,319.90 is: 39,080.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,979.48 : 70,349.18 = 28,319.90 : x
  2. Step 2: Convert to fraction form
    50,979.48/70,349.18 = 28,319.90/x
  3. Step 3: Cross multiply
    50,979.48x = 70,349.18 × 28,319.90
  4. Step 4: Simplify right side
    50,979.48x = 1,992,281,742.68
  5. Step 5: Solve for x
    x = 1,992,281,742.68/50,979.48
  6. Step 6: Final answer
    x = 39,080.07

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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.