Home / 66,529.34-91,808.21-39,658.02

Finding the Fourth Proportional to 66,529.34, 91,808.21 and 39,658.02

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Solution

The fourth proportional to 66,529.34, 91,808.21 and 39,658.02 is: 54,726.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,529.34 : 91,808.21 = 39,658.02 : x
  2. Step 2: Convert to fraction form
    66,529.34/91,808.21 = 39,658.02/x
  3. Step 3: Cross multiply
    66,529.34x = 91,808.21 × 39,658.02
  4. Step 4: Simplify right side
    66,529.34x = 3,640,931,828.34
  5. Step 5: Solve for x
    x = 3,640,931,828.34/66,529.34
  6. Step 6: Final answer
    x = 54,726.71

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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.