Home / 68,366.20-102,549.30-45,038.20

Finding the Fourth Proportional to 68,366.20, 102,549.30 and 45,038.20

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Solution

The fourth proportional to 68,366.20, 102,549.30 and 45,038.20 is: 67,557.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,366.20 : 102,549.30 = 45,038.20 : x
  2. Step 2: Convert to fraction form
    68,366.20/102,549.30 = 45,038.20/x
  3. Step 3: Cross multiply
    68,366.20x = 102,549.30 × 45,038.20
  4. Step 4: Simplify right side
    68,366.20x = 4,618,635,883.26
  5. Step 5: Solve for x
    x = 4,618,635,883.26/68,366.20
  6. Step 6: Final answer
    x = 67,557.30

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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.