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Finding the Fourth Proportional to 40,579, 60,868.52 and 12,877

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Solution

The fourth proportional to 40,579, 60,868.52 and 12,877 is: 19,315.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,579 : 60,868.52 = 12,877 : x
  2. Step 2: Convert to fraction form
    40,579/60,868.52 = 12,877/x
  3. Step 3: Cross multiply
    40,579x = 60,868.52 × 12,877
  4. Step 4: Simplify right side
    40,579x = 783,803,932.04
  5. Step 5: Solve for x
    x = 783,803,932.04/40,579
  6. Step 6: Final answer
    x = 19,315.51

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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.