Home / 71,975.02-99,325.70-40,145.98

Finding the Fourth Proportional to 71,975.02, 99,325.70 and 40,145.98

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Solution

The fourth proportional to 71,975.02, 99,325.70 and 40,145.98 is: 55,401.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,975.02 : 99,325.70 = 40,145.98 : x
  2. Step 2: Convert to fraction form
    71,975.02/99,325.70 = 40,145.98/x
  3. Step 3: Cross multiply
    71,975.02x = 99,325.70 × 40,145.98
  4. Step 4: Simplify right side
    71,975.02x = 3,987,527,565.69
  5. Step 5: Solve for x
    x = 3,987,527,565.69/71,975.02
  6. Step 6: Final answer
    x = 55,401.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.