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Finding the Fourth Proportional to 55,511.91, 83,236.02 and 21,738.40

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Solution

The fourth proportional to 55,511.91, 83,236.02 and 21,738.40 is: 32,595.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,511.91 : 83,236.02 = 21,738.40 : x
  2. Step 2: Convert to fraction form
    55,511.91/83,236.02 = 21,738.40/x
  3. Step 3: Cross multiply
    55,511.91x = 83,236.02 × 21,738.40
  4. Step 4: Simplify right side
    55,511.91x = 1,809,417,897.17
  5. Step 5: Solve for x
    x = 1,809,417,897.17/55,511.91
  6. Step 6: Final answer
    x = 32,595.13

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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.