Home / 80,530.28-111,136.93-44,720.29

Finding the Fourth Proportional to 80,530.28, 111,136.93 and 44,720.29

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Solution

The fourth proportional to 80,530.28, 111,136.93 and 44,720.29 is: 61,716.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,530.28 : 111,136.93 = 44,720.29 : x
  2. Step 2: Convert to fraction form
    80,530.28/111,136.93 = 44,720.29/x
  3. Step 3: Cross multiply
    80,530.28x = 111,136.93 × 44,720.29
  4. Step 4: Simplify right side
    80,530.28x = 4,970,075,515.71
  5. Step 5: Solve for x
    x = 4,970,075,515.71/80,530.28
  6. Step 6: Final answer
    x = 61,716.85

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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.