Home / 66,352.31-91,575.22-39,136.09

Finding the Fourth Proportional to 66,352.31, 91,575.22 and 39,136.09

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Solution

The fourth proportional to 66,352.31, 91,575.22 and 39,136.09 is: 54,013.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,352.31 : 91,575.22 = 39,136.09 : x
  2. Step 2: Convert to fraction form
    66,352.31/91,575.22 = 39,136.09/x
  3. Step 3: Cross multiply
    66,352.31x = 91,575.22 × 39,136.09
  4. Step 4: Simplify right side
    66,352.31x = 3,583,895,919.77
  5. Step 5: Solve for x
    x = 3,583,895,919.77/66,352.31
  6. Step 6: Final answer
    x = 54,013.13

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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.