Home / 71,795.89-99,081.63-39,966.85

Finding the Fourth Proportional to 71,795.89, 99,081.63 and 39,966.85

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Solution

The fourth proportional to 71,795.89, 99,081.63 and 39,966.85 is: 55,156.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,795.89 : 99,081.63 = 39,966.85 : x
  2. Step 2: Convert to fraction form
    71,795.89/99,081.63 = 39,966.85/x
  3. Step 3: Cross multiply
    71,795.89x = 99,081.63 × 39,966.85
  4. Step 4: Simplify right side
    71,795.89x = 3,959,980,643.97
  5. Step 5: Solve for x
    x = 3,959,980,643.97/71,795.89
  6. Step 6: Final answer
    x = 55,156.09

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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.