Home / 71,975.83-99,326.82-40,146.79

Finding the Fourth Proportional to 71,975.83, 99,326.82 and 40,146.79

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Solution

The fourth proportional to 71,975.83, 99,326.82 and 40,146.79 is: 55,402.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,975.83 : 99,326.82 = 40,146.79 : x
  2. Step 2: Convert to fraction form
    71,975.83/99,326.82 = 40,146.79/x
  3. Step 3: Cross multiply
    71,975.83x = 99,326.82 × 40,146.79
  4. Step 4: Simplify right side
    71,975.83x = 3,987,652,983.91
  5. Step 5: Solve for x
    x = 3,987,652,983.91/71,975.83
  6. Step 6: Final answer
    x = 55,402.67

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1.5x scale

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.