Home / 45,420.10-68,000.55-40,236.10

Finding the Fourth Proportional to 45,420.10, 68,000.55 and 40,236.10

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Solution

The fourth proportional to 45,420.10, 68,000.55 and 40,236.10 is: 60,239.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,420.10 : 68,000.55 = 40,236.10 : x
  2. Step 2: Convert to fraction form
    45,420.10/68,000.55 = 40,236.10/x
  3. Step 3: Cross multiply
    45,420.10x = 68,000.55 × 40,236.10
  4. Step 4: Simplify right side
    45,420.10x = 2,736,076,929.86
  5. Step 5: Solve for x
    x = 2,736,076,929.86/45,420.10
  6. Step 6: Final answer
    x = 60,239.34

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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.