Home / 66,148.56-99,237.42-21,789.18

Finding the Fourth Proportional to 66,148.56, 99,237.42 and 21,789.18

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Solution

The fourth proportional to 66,148.56, 99,237.42 and 21,789.18 is: 32,688.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,148.56 : 99,237.42 = 21,789.18 : x
  2. Step 2: Convert to fraction form
    66,148.56/99,237.42 = 21,789.18/x
  3. Step 3: Cross multiply
    66,148.56x = 99,237.42 × 21,789.18
  4. Step 4: Simplify right side
    66,148.56x = 2,162,302,007.12
  5. Step 5: Solve for x
    x = 2,162,302,007.12/66,148.56
  6. Step 6: Final answer
    x = 32,688.57

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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.