Home / 66,742.55-92,073.60-38,431.83

Finding the Fourth Proportional to 66,742.55, 92,073.60 and 38,431.83

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Solution

The fourth proportional to 66,742.55, 92,073.60 and 38,431.83 is: 53,018.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,742.55 : 92,073.60 = 38,431.83 : x
  2. Step 2: Convert to fraction form
    66,742.55/92,073.60 = 38,431.83/x
  3. Step 3: Cross multiply
    66,742.55x = 92,073.60 × 38,431.83
  4. Step 4: Simplify right side
    66,742.55x = 3,538,556,942.69
  5. Step 5: Solve for x
    x = 3,538,556,942.69/66,742.55
  6. Step 6: Final answer
    x = 53,018.01

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1.5x scale

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.