Home / 50,990.16-76,455-19,402.59

Finding the Fourth Proportional to 50,990.16, 76,455 and 19,402.59

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Solution

The fourth proportional to 50,990.16, 76,455 and 19,402.59 is: 29,092.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,990.16 : 76,455 = 19,402.59 : x
  2. Step 2: Convert to fraction form
    50,990.16/76,455 = 19,402.59/x
  3. Step 3: Cross multiply
    50,990.16x = 76,455 × 19,402.59
  4. Step 4: Simplify right side
    50,990.16x = 1,483,425,018.45
  5. Step 5: Solve for x
    x = 1,483,425,018.45/50,990.16
  6. Step 6: Final answer
    x = 29,092.38

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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.