Home / 50,980.36-70,350.51-28,320.79

Finding the Fourth Proportional to 50,980.36, 70,350.51 and 28,320.79

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Solution

The fourth proportional to 50,980.36, 70,350.51 and 28,320.79 is: 39,081.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,980.36 : 70,350.51 = 28,320.79 : x
  2. Step 2: Convert to fraction form
    50,980.36/70,350.51 = 28,320.79/x
  3. Step 3: Cross multiply
    50,980.36x = 70,350.51 × 28,320.79
  4. Step 4: Simplify right side
    50,980.36x = 1,992,382,020.10
  5. Step 5: Solve for x
    x = 1,992,382,020.10/50,980.36
  6. Step 6: Final answer
    x = 39,081.36

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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.