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Finding the Fourth Proportional to 56,079, 84,118.50 and 14,526

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Solution

The fourth proportional to 56,079, 84,118.50 and 14,526 is: 21,789

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,079 : 84,118.50 = 14,526 : x
  2. Step 2: Convert to fraction form
    56,079/84,118.50 = 14,526/x
  3. Step 3: Cross multiply
    56,079x = 84,118.50 × 14,526
  4. Step 4: Simplify right side
    56,079x = 1,221,905,331
  5. Step 5: Solve for x
    x = 1,221,905,331/56,079
  6. Step 6: Final answer
    x = 21,789

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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.