Home / 50,979.70-70,349.54-28,320.15

Finding the Fourth Proportional to 50,979.70, 70,349.54 and 28,320.15

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Solution

The fourth proportional to 50,979.70, 70,349.54 and 28,320.15 is: 39,080.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,979.70 : 70,349.54 = 28,320.15 : x
  2. Step 2: Convert to fraction form
    50,979.70/70,349.54 = 28,320.15/x
  3. Step 3: Cross multiply
    50,979.70x = 70,349.54 × 28,320.15
  4. Step 4: Simplify right side
    50,979.70x = 1,992,309,525.23
  5. Step 5: Solve for x
    x = 1,992,309,525.23/50,979.70
  6. Step 6: Final answer
    x = 39,080.45

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1.5x scale

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.