Home / 71,835.35-99,133.76-40,005.05

Finding the Fourth Proportional to 71,835.35, 99,133.76 and 40,005.05

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Solution

The fourth proportional to 71,835.35, 99,133.76 and 40,005.05 is: 55,207.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,835.35 : 99,133.76 = 40,005.05 : x
  2. Step 2: Convert to fraction form
    71,835.35/99,133.76 = 40,005.05/x
  3. Step 3: Cross multiply
    71,835.35x = 99,133.76 × 40,005.05
  4. Step 4: Simplify right side
    71,835.35x = 3,965,850,825.46
  5. Step 5: Solve for x
    x = 3,965,850,825.46/71,835.35
  6. Step 6: Final answer
    x = 55,207.51

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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.