Home / 66,105.01-91,136.80-52,538.35

Finding the Fourth Proportional to 66,105.01, 91,136.80 and 52,538.35

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Solution

The fourth proportional to 66,105.01, 91,136.80 and 52,538.35 is: 72,432.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,105.01 : 91,136.80 = 52,538.35 : x
  2. Step 2: Convert to fraction form
    66,105.01/91,136.80 = 52,538.35/x
  3. Step 3: Cross multiply
    66,105.01x = 91,136.80 × 52,538.35
  4. Step 4: Simplify right side
    66,105.01x = 4,788,177,096.28
  5. Step 5: Solve for x
    x = 4,788,177,096.28/66,105.01
  6. Step 6: Final answer
    x = 72,432.89

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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.