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Finding the Fourth Proportional to 55,370.72, 83,006.72 and 20,302.18

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Solution

The fourth proportional to 55,370.72, 83,006.72 and 20,302.18 is: 30,435.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,370.72 : 83,006.72 = 20,302.18 : x
  2. Step 2: Convert to fraction form
    55,370.72/83,006.72 = 20,302.18/x
  3. Step 3: Cross multiply
    55,370.72x = 83,006.72 × 20,302.18
  4. Step 4: Simplify right side
    55,370.72x = 1,685,217,370.65
  5. Step 5: Solve for x
    x = 1,685,217,370.65/55,370.72
  6. Step 6: Final answer
    x = 30,435.17

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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.