Home / 50,139.45-69,192.63-28,918.80

Finding the Fourth Proportional to 50,139.45, 69,192.63 and 28,918.80

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Solution

The fourth proportional to 50,139.45, 69,192.63 and 28,918.80 is: 39,908.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,139.45 : 69,192.63 = 28,918.80 : x
  2. Step 2: Convert to fraction form
    50,139.45/69,192.63 = 28,918.80/x
  3. Step 3: Cross multiply
    50,139.45x = 69,192.63 × 28,918.80
  4. Step 4: Simplify right side
    50,139.45x = 2,000,967,828.44
  5. Step 5: Solve for x
    x = 2,000,967,828.44/50,139.45
  6. Step 6: Final answer
    x = 39,908.05

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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.