Home / 66,105.51-91,137.48-52,538.85

Finding the Fourth Proportional to 66,105.51, 91,137.48 and 52,538.85

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Solution

The fourth proportional to 66,105.51, 91,137.48 and 52,538.85 is: 72,433.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,105.51 : 91,137.48 = 52,538.85 : x
  2. Step 2: Convert to fraction form
    66,105.51/91,137.48 = 52,538.85/x
  3. Step 3: Cross multiply
    66,105.51x = 91,137.48 × 52,538.85
  4. Step 4: Simplify right side
    66,105.51x = 4,788,258,391.10
  5. Step 5: Solve for x
    x = 4,788,258,391.10/66,105.51
  6. Step 6: Final answer
    x = 72,433.57

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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.