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Finding the Fourth Proportional to 50,877, 70,210.26 and 28,521

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Solution

The fourth proportional to 50,877, 70,210.26 and 28,521 is: 39,358.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,877 : 70,210.26 = 28,521 : x
  2. Step 2: Convert to fraction form
    50,877/70,210.26 = 28,521/x
  3. Step 3: Cross multiply
    50,877x = 70,210.26 × 28,521
  4. Step 4: Simplify right side
    50,877x = 2,002,466,825.46
  5. Step 5: Solve for x
    x = 2,002,466,825.46/50,877
  6. Step 6: Final answer
    x = 39,358.98

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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.