Home / 85,699.41-118,251.12-53,845.75

Finding the Fourth Proportional to 85,699.41, 118,251.12 and 53,845.75

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Solution

The fourth proportional to 85,699.41, 118,251.12 and 53,845.75 is: 74,298.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,699.41 : 118,251.12 = 53,845.75 : x
  2. Step 2: Convert to fraction form
    85,699.41/118,251.12 = 53,845.75/x
  3. Step 3: Cross multiply
    85,699.41x = 118,251.12 × 53,845.75
  4. Step 4: Simplify right side
    85,699.41x = 6,367,320,244.74
  5. Step 5: Solve for x
    x = 6,367,320,244.74/85,699.41
  6. Step 6: Final answer
    x = 74,298.30

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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.