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Finding the Fourth Proportional to 55,872.50, 83,790.95 and 18,425.57

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Solution

The fourth proportional to 55,872.50, 83,790.95 and 18,425.57 is: 27,632.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,872.50 : 83,790.95 = 18,425.57 : x
  2. Step 2: Convert to fraction form
    55,872.50/83,790.95 = 18,425.57/x
  3. Step 3: Cross multiply
    55,872.50x = 83,790.95 × 18,425.57
  4. Step 4: Simplify right side
    55,872.50x = 1,543,895,503.51
  5. Step 5: Solve for x
    x = 1,543,895,503.51/55,872.50
  6. Step 6: Final answer
    x = 27,632.48

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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.