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Finding the Fourth Proportional to 69,219.72, 95,521.14 and 39,006.72

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Solution

The fourth proportional to 69,219.72, 95,521.14 and 39,006.72 is: 53,828.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,219.72 : 95,521.14 = 39,006.72 : x
  2. Step 2: Convert to fraction form
    69,219.72/95,521.14 = 39,006.72/x
  3. Step 3: Cross multiply
    69,219.72x = 95,521.14 × 39,006.72
  4. Step 4: Simplify right side
    69,219.72x = 3,725,966,362.06
  5. Step 5: Solve for x
    x = 3,725,966,362.06/69,219.72
  6. Step 6: Final answer
    x = 53,828.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.