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Finding the Fourth Proportional to 85,880, 118,474.08 and 60,743.36

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Solution

The fourth proportional to 85,880, 118,474.08 and 60,743.36 is: 83,797.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,880 : 118,474.08 = 60,743.36 : x
  2. Step 2: Convert to fraction form
    85,880/118,474.08 = 60,743.36/x
  3. Step 3: Cross multiply
    85,880x = 118,474.08 × 60,743.36
  4. Step 4: Simplify right side
    85,880x = 7,196,513,692.11
  5. Step 5: Solve for x
    x = 7,196,513,692.11/85,880
  6. Step 6: Final answer
    x = 83,797.32

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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.