Home / 66,301.22-99,452.27-18,916.21

Finding the Fourth Proportional to 66,301.22, 99,452.27 and 18,916.21

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Solution

The fourth proportional to 66,301.22, 99,452.27 and 18,916.21 is: 28,374.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,301.22 : 99,452.27 = 18,916.21 : x
  2. Step 2: Convert to fraction form
    66,301.22/99,452.27 = 18,916.21/x
  3. Step 3: Cross multiply
    66,301.22x = 99,452.27 × 18,916.21
  4. Step 4: Simplify right side
    66,301.22x = 1,881,259,432.45
  5. Step 5: Solve for x
    x = 1,881,259,432.45/66,301.22
  6. Step 6: Final answer
    x = 28,374.43

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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.