Home / 51,638.91-77,435.01-18,359.87

Finding the Fourth Proportional to 51,638.91, 77,435.01 and 18,359.87

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Solution

The fourth proportional to 51,638.91, 77,435.01 and 18,359.87 is: 27,531.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,638.91 : 77,435.01 = 18,359.87 : x
  2. Step 2: Convert to fraction form
    51,638.91/77,435.01 = 18,359.87/x
  3. Step 3: Cross multiply
    51,638.91x = 77,435.01 × 18,359.87
  4. Step 4: Simplify right side
    51,638.91x = 1,421,696,265.33
  5. Step 5: Solve for x
    x = 1,421,696,265.33/51,638.91
  6. Step 6: Final answer
    x = 27,531.49

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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.