Home / 66,320.67-91,512.21-38,020.89

Finding the Fourth Proportional to 66,320.67, 91,512.21 and 38,020.89

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Solution

The fourth proportional to 66,320.67, 91,512.21 and 38,020.89 is: 52,462.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,320.67 : 91,512.21 = 38,020.89 : x
  2. Step 2: Convert to fraction form
    66,320.67/91,512.21 = 38,020.89/x
  3. Step 3: Cross multiply
    66,320.67x = 91,512.21 × 38,020.89
  4. Step 4: Simplify right side
    66,320.67x = 3,479,375,670.07
  5. Step 5: Solve for x
    x = 3,479,375,670.07/66,320.67
  6. Step 6: Final answer
    x = 52,462.91

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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.