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Finding the Fourth Proportional to 85,761, 118,350.18 and 48,036.06

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Solution

The fourth proportional to 85,761, 118,350.18 and 48,036.06 is: 66,289.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,761 : 118,350.18 = 48,036.06 : x
  2. Step 2: Convert to fraction form
    85,761/118,350.18 = 48,036.06/x
  3. Step 3: Cross multiply
    85,761x = 118,350.18 × 48,036.06
  4. Step 4: Simplify right side
    85,761x = 5,685,076,347.49
  5. Step 5: Solve for x
    x = 5,685,076,347.49/85,761
  6. Step 6: Final answer
    x = 66,289.76

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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.