Home / 50,415.40-75,623.10-42,542.20

Finding the Fourth Proportional to 50,415.40, 75,623.10 and 42,542.20

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Solution

The fourth proportional to 50,415.40, 75,623.10 and 42,542.20 is: 63,813.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,415.40 : 75,623.10 = 42,542.20 : x
  2. Step 2: Convert to fraction form
    50,415.40/75,623.10 = 42,542.20/x
  3. Step 3: Cross multiply
    50,415.40x = 75,623.10 × 42,542.20
  4. Step 4: Simplify right side
    50,415.40x = 3,217,173,044.82
  5. Step 5: Solve for x
    x = 3,217,173,044.82/50,415.40
  6. Step 6: Final answer
    x = 63,813.30

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.