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Finding the Fourth Proportional to 45,415.40, 68,123.10 and 24,420.20

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Solution

The fourth proportional to 45,415.40, 68,123.10 and 24,420.20 is: 36,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,415.40 : 68,123.10 = 24,420.20 : x
  2. Step 2: Convert to fraction form
    45,415.40/68,123.10 = 24,420.20/x
  3. Step 3: Cross multiply
    45,415.40x = 68,123.10 × 24,420.20
  4. Step 4: Simplify right side
    45,415.40x = 1,663,579,726.62
  5. Step 5: Solve for x
    x = 1,663,579,726.62/45,415.40
  6. Step 6: Final answer
    x = 36,630.30

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1.5x scale

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.