Home / 40,507.20-60,762.63-12,425.22

Finding the Fourth Proportional to 40,507.20, 60,762.63 and 12,425.22

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Solution

The fourth proportional to 40,507.20, 60,762.63 and 12,425.22 is: 18,638.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,507.20 : 60,762.63 = 12,425.22 : x
  2. Step 2: Convert to fraction form
    40,507.20/60,762.63 = 12,425.22/x
  3. Step 3: Cross multiply
    40,507.20x = 60,762.63 × 12,425.22
  4. Step 4: Simplify right side
    40,507.20x = 754,989,045.53
  5. Step 5: Solve for x
    x = 754,989,045.53/40,507.20
  6. Step 6: Final answer
    x = 18,638.39

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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.