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Finding the Fourth Proportional to 56,788.95, 78,387.09 and 36,630.27

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Solution

The fourth proportional to 56,788.95, 78,387.09 and 36,630.27 is: 50,561.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,788.95 : 78,387.09 = 36,630.27 : x
  2. Step 2: Convert to fraction form
    56,788.95/78,387.09 = 36,630.27/x
  3. Step 3: Cross multiply
    56,788.95x = 78,387.09 × 36,630.27
  4. Step 4: Simplify right side
    56,788.95x = 2,871,340,271.21
  5. Step 5: Solve for x
    x = 2,871,340,271.21/56,788.95
  6. Step 6: Final answer
    x = 50,561.60

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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.