Home / 66,020.81-91,148.19-43,397.67

Finding the Fourth Proportional to 66,020.81, 91,148.19 and 43,397.67

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Solution

The fourth proportional to 66,020.81, 91,148.19 and 43,397.67 is: 59,914.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,020.81 : 91,148.19 = 43,397.67 : x
  2. Step 2: Convert to fraction form
    66,020.81/91,148.19 = 43,397.67/x
  3. Step 3: Cross multiply
    66,020.81x = 91,148.19 × 43,397.67
  4. Step 4: Simplify right side
    66,020.81x = 3,955,619,249.78
  5. Step 5: Solve for x
    x = 3,955,619,249.78/66,020.81
  6. Step 6: Final answer
    x = 59,914.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.