Home / 66,499.47-99,636.44-40,148.87

Finding the Fourth Proportional to 66,499.47, 99,636.44 and 40,148.87

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Solution

The fourth proportional to 66,499.47, 99,636.44 and 40,148.87 is: 60,155.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,499.47 : 99,636.44 = 40,148.87 : x
  2. Step 2: Convert to fraction form
    66,499.47/99,636.44 = 40,148.87/x
  3. Step 3: Cross multiply
    66,499.47x = 99,636.44 × 40,148.87
  4. Step 4: Simplify right side
    66,499.47x = 4,000,289,777.90
  5. Step 5: Solve for x
    x = 4,000,289,777.90/66,499.47
  6. Step 6: Final answer
    x = 60,155.21

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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.