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Finding the Fourth Proportional to 85,848, 118,509.04 and 54,063.60

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Solution

The fourth proportional to 85,848, 118,509.04 and 54,063.60 is: 74,632.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,848 : 118,509.04 = 54,063.60 : x
  2. Step 2: Convert to fraction form
    85,848/118,509.04 = 54,063.60/x
  3. Step 3: Cross multiply
    85,848x = 118,509.04 × 54,063.60
  4. Step 4: Simplify right side
    85,848x = 6,407,025,334.94
  5. Step 5: Solve for x
    x = 6,407,025,334.94/85,848
  6. Step 6: Final answer
    x = 74,632.20

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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.