Home / 85,242.01-117,585.78-53,355.55

Finding the Fourth Proportional to 85,242.01, 117,585.78 and 53,355.55

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Solution

The fourth proportional to 85,242.01, 117,585.78 and 53,355.55 is: 73,600.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,242.01 : 117,585.78 = 53,355.55 : x
  2. Step 2: Convert to fraction form
    85,242.01/117,585.78 = 53,355.55/x
  3. Step 3: Cross multiply
    85,242.01x = 117,585.78 × 53,355.55
  4. Step 4: Simplify right side
    85,242.01x = 6,273,853,376.15
  5. Step 5: Solve for x
    x = 6,273,853,376.15/85,242.01
  6. Step 6: Final answer
    x = 73,600.49

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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.