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Finding the Fourth Proportional to 61,130.88, 91,578.24 and 45,092.16

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Solution

The fourth proportional to 61,130.88, 91,578.24 and 45,092.16 is: 67,551.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,130.88 : 91,578.24 = 45,092.16 : x
  2. Step 2: Convert to fraction form
    61,130.88/91,578.24 = 45,092.16/x
  3. Step 3: Cross multiply
    61,130.88x = 91,578.24 × 45,092.16
  4. Step 4: Simplify right side
    61,130.88x = 4,129,460,650.60
  5. Step 5: Solve for x
    x = 4,129,460,650.60/61,130.88
  6. Step 6: Final answer
    x = 67,551.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.