Home / 66,914.96-92,339.52-38,629.76

Finding the Fourth Proportional to 66,914.96, 92,339.52 and 38,629.76

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Solution

The fourth proportional to 66,914.96, 92,339.52 and 38,629.76 is: 53,307.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,914.96 : 92,339.52 = 38,629.76 : x
  2. Step 2: Convert to fraction form
    66,914.96/92,339.52 = 38,629.76/x
  3. Step 3: Cross multiply
    66,914.96x = 92,339.52 × 38,629.76
  4. Step 4: Simplify right side
    66,914.96x = 3,567,053,496.12
  5. Step 5: Solve for x
    x = 3,567,053,496.12/66,914.96
  6. Step 6: Final answer
    x = 53,307.26

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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.