Home / 50,721.81-69,995.61-28,365.81

Finding the Fourth Proportional to 50,721.81, 69,995.61 and 28,365.81

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Solution

The fourth proportional to 50,721.81, 69,995.61 and 28,365.81 is: 39,144.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,721.81 : 69,995.61 = 28,365.81 : x
  2. Step 2: Convert to fraction form
    50,721.81/69,995.61 = 28,365.81/x
  3. Step 3: Cross multiply
    50,721.81x = 69,995.61 × 28,365.81
  4. Step 4: Simplify right side
    50,721.81x = 1,985,482,174.09
  5. Step 5: Solve for x
    x = 1,985,482,174.09/50,721.81
  6. Step 6: Final answer
    x = 39,144.55

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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.