Home / 50,030.79-69,021.09-28,805.55

Finding the Fourth Proportional to 50,030.79, 69,021.09 and 28,805.55

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Solution

The fourth proportional to 50,030.79, 69,021.09 and 28,805.55 is: 39,739.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,030.79 : 69,021.09 = 28,805.55 : x
  2. Step 2: Convert to fraction form
    50,030.79/69,021.09 = 28,805.55/x
  3. Step 3: Cross multiply
    50,030.79x = 69,021.09 × 28,805.55
  4. Step 4: Simplify right side
    50,030.79x = 1,988,190,459.05
  5. Step 5: Solve for x
    x = 1,988,190,459.05/50,030.79
  6. Step 6: Final answer
    x = 39,739.34

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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.