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Finding the Fourth Proportional to 55,191.30, 82,746.45 and 21,894.90

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Solution

The fourth proportional to 55,191.30, 82,746.45 and 21,894.90 is: 32,826.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,191.30 : 82,746.45 = 21,894.90 : x
  2. Step 2: Convert to fraction form
    55,191.30/82,746.45 = 21,894.90/x
  3. Step 3: Cross multiply
    55,191.30x = 82,746.45 × 21,894.90
  4. Step 4: Simplify right side
    55,191.30x = 1,811,725,248.11
  5. Step 5: Solve for x
    x = 1,811,725,248.11/55,191.30
  6. Step 6: Final answer
    x = 32,826.28

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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.