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Finding the Fourth Proportional to 85,762, 118,351.56 and 48,036.16

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Solution

The fourth proportional to 85,762, 118,351.56 and 48,036.16 is: 66,289.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,762 : 118,351.56 = 48,036.16 : x
  2. Step 2: Convert to fraction form
    85,762/118,351.56 = 48,036.16/x
  3. Step 3: Cross multiply
    85,762x = 118,351.56 × 48,036.16
  4. Step 4: Simplify right side
    85,762x = 5,685,154,472.41
  5. Step 5: Solve for x
    x = 5,685,154,472.41/85,762
  6. Step 6: Final answer
    x = 66,289.90

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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.