Home / 45,140.02-67,673.88-21,435.57

Finding the Fourth Proportional to 45,140.02, 67,673.88 and 21,435.57

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Solution

The fourth proportional to 45,140.02, 67,673.88 and 21,435.57 is: 32,136.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,140.02 : 67,673.88 = 21,435.57 : x
  2. Step 2: Convert to fraction form
    45,140.02/67,673.88 = 21,435.57/x
  3. Step 3: Cross multiply
    45,140.02x = 67,673.88 × 21,435.57
  4. Step 4: Simplify right side
    45,140.02x = 1,450,628,191.91
  5. Step 5: Solve for x
    x = 1,450,628,191.91/45,140.02
  6. Step 6: Final answer
    x = 32,136.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.