Home / 66,535.02-91,818.36-38,240.64

Finding the Fourth Proportional to 66,535.02, 91,818.36 and 38,240.64

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Solution

The fourth proportional to 66,535.02, 91,818.36 and 38,240.64 is: 52,772.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,535.02 : 91,818.36 = 38,240.64 : x
  2. Step 2: Convert to fraction form
    66,535.02/91,818.36 = 38,240.64/x
  3. Step 3: Cross multiply
    66,535.02x = 91,818.36 × 38,240.64
  4. Step 4: Simplify right side
    66,535.02x = 3,511,192,850.15
  5. Step 5: Solve for x
    x = 3,511,192,850.15/66,535.02
  6. Step 6: Final answer
    x = 52,772.10

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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.