Home / 66,756.96-92,133-39,899.52

Finding the Fourth Proportional to 66,756.96, 92,133 and 39,899.52

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Solution

The fourth proportional to 66,756.96, 92,133 and 39,899.52 is: 55,066.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,756.96 : 92,133 = 39,899.52 : x
  2. Step 2: Convert to fraction form
    66,756.96/92,133 = 39,899.52/x
  3. Step 3: Cross multiply
    66,756.96x = 92,133 × 39,899.52
  4. Step 4: Simplify right side
    66,756.96x = 3,676,062,476.16
  5. Step 5: Solve for x
    x = 3,676,062,476.16/66,756.96
  6. Step 6: Final answer
    x = 55,066.36

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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.