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Finding the Fourth Proportional to 68,130, 94,023.88 and 38,323.92

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Solution

The fourth proportional to 68,130, 94,023.88 and 38,323.92 is: 52,889.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,130 : 94,023.88 = 38,323.92 : x
  2. Step 2: Convert to fraction form
    68,130/94,023.88 = 38,323.92/x
  3. Step 3: Cross multiply
    68,130x = 94,023.88 × 38,323.92
  4. Step 4: Simplify right side
    68,130x = 3,603,363,655.21
  5. Step 5: Solve for x
    x = 3,603,363,655.21/68,130
  6. Step 6: Final answer
    x = 52,889.53

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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.