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Finding the Fourth Proportional to 56,981.97, 85,472.01 and 21,929.22

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Solution

The fourth proportional to 56,981.97, 85,472.01 and 21,929.22 is: 32,893.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,981.97 : 85,472.01 = 21,929.22 : x
  2. Step 2: Convert to fraction form
    56,981.97/85,472.01 = 21,929.22/x
  3. Step 3: Cross multiply
    56,981.97x = 85,472.01 × 21,929.22
  4. Step 4: Simplify right side
    56,981.97x = 1,874,334,511.13
  5. Step 5: Solve for x
    x = 1,874,334,511.13/56,981.97
  6. Step 6: Final answer
    x = 32,893.47

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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.