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Finding the Fourth Proportional to 50,487, 75,751.98 and 20,926.32

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Solution

The fourth proportional to 50,487, 75,751.98 and 20,926.32 is: 31,398.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,487 : 75,751.98 = 20,926.32 : x
  2. Step 2: Convert to fraction form
    50,487/75,751.98 = 20,926.32/x
  3. Step 3: Cross multiply
    50,487x = 75,751.98 × 20,926.32
  4. Step 4: Simplify right side
    50,487x = 1,585,210,174.11
  5. Step 5: Solve for x
    x = 1,585,210,174.11/50,487
  6. Step 6: Final answer
    x = 31,398.38

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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.