Home / 66,029.92-91,132.96-39,187.24

Finding the Fourth Proportional to 66,029.92, 91,132.96 and 39,187.24

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Solution

The fourth proportional to 66,029.92, 91,132.96 and 39,187.24 is: 54,085.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,029.92 : 91,132.96 = 39,187.24 : x
  2. Step 2: Convert to fraction form
    66,029.92/91,132.96 = 39,187.24/x
  3. Step 3: Cross multiply
    66,029.92x = 91,132.96 × 39,187.24
  4. Step 4: Simplify right side
    66,029.92x = 3,571,249,175.43
  5. Step 5: Solve for x
    x = 3,571,249,175.43/66,029.92
  6. Step 6: Final answer
    x = 54,085.32

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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.