Home / 71,549.21-98,732.96-39,715.59

Finding the Fourth Proportional to 71,549.21, 98,732.96 and 39,715.59

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Solution

The fourth proportional to 71,549.21, 98,732.96 and 39,715.59 is: 54,804.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,549.21 : 98,732.96 = 39,715.59 : x
  2. Step 2: Convert to fraction form
    71,549.21/98,732.96 = 39,715.59/x
  3. Step 3: Cross multiply
    71,549.21x = 98,732.96 × 39,715.59
  4. Step 4: Simplify right side
    71,549.21x = 3,921,237,560.27
  5. Step 5: Solve for x
    x = 3,921,237,560.27/71,549.21
  6. Step 6: Final answer
    x = 54,804.77

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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.