Home / 85,607.36-118,119.12-53,764.64

Finding the Fourth Proportional to 85,607.36, 118,119.12 and 53,764.64

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Solution

The fourth proportional to 85,607.36, 118,119.12 and 53,764.64 is: 74,183.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,607.36 : 118,119.12 = 53,764.64 : x
  2. Step 2: Convert to fraction form
    85,607.36/118,119.12 = 53,764.64/x
  3. Step 3: Cross multiply
    85,607.36x = 118,119.12 × 53,764.64
  4. Step 4: Simplify right side
    85,607.36x = 6,350,631,963.92
  5. Step 5: Solve for x
    x = 6,350,631,963.92/85,607.36
  6. Step 6: Final answer
    x = 74,183.25

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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.