Home / 85,720.44-118,350.54-52,243.32

Finding the Fourth Proportional to 85,720.44, 118,350.54 and 52,243.32

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Solution

The fourth proportional to 85,720.44, 118,350.54 and 52,243.32 is: 72,130.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,720.44 : 118,350.54 = 52,243.32 : x
  2. Step 2: Convert to fraction form
    85,720.44/118,350.54 = 52,243.32/x
  3. Step 3: Cross multiply
    85,720.44x = 118,350.54 × 52,243.32
  4. Step 4: Simplify right side
    85,720.44x = 6,183,025,133.39
  5. Step 5: Solve for x
    x = 6,183,025,133.39/85,720.44
  6. Step 6: Final answer
    x = 72,130.11

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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.