Home / 66,369.06-91,588.59-38,079.18

Finding the Fourth Proportional to 66,369.06, 91,588.59 and 38,079.18

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Solution

The fourth proportional to 66,369.06, 91,588.59 and 38,079.18 is: 52,548.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,369.06 : 91,588.59 = 38,079.18 : x
  2. Step 2: Convert to fraction form
    66,369.06/91,588.59 = 38,079.18/x
  3. Step 3: Cross multiply
    66,369.06x = 91,588.59 × 38,079.18
  4. Step 4: Simplify right side
    66,369.06x = 3,487,618,404.56
  5. Step 5: Solve for x
    x = 3,487,618,404.56/66,369.06
  6. Step 6: Final answer
    x = 52,548.86

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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.