Home / 85,704.42-118,258.02-53,850.75

Finding the Fourth Proportional to 85,704.42, 118,258.02 and 53,850.75

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Solution

The fourth proportional to 85,704.42, 118,258.02 and 53,850.75 is: 74,305.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,704.42 : 118,258.02 = 53,850.75 : x
  2. Step 2: Convert to fraction form
    85,704.42/118,258.02 = 53,850.75/x
  3. Step 3: Cross multiply
    85,704.42x = 118,258.02 × 53,850.75
  4. Step 4: Simplify right side
    85,704.42x = 6,368,283,070.52
  5. Step 5: Solve for x
    x = 6,368,283,070.52/85,704.42
  6. Step 6: Final answer
    x = 74,305.19

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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.