Home / 74,320.20-111,329.10-46,153.80

Finding the Fourth Proportional to 74,320.20, 111,329.10 and 46,153.80

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Solution

The fourth proportional to 74,320.20, 111,329.10 and 46,153.80 is: 69,136.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,320.20 : 111,329.10 = 46,153.80 : x
  2. Step 2: Convert to fraction form
    74,320.20/111,329.10 = 46,153.80/x
  3. Step 3: Cross multiply
    74,320.20x = 111,329.10 × 46,153.80
  4. Step 4: Simplify right side
    74,320.20x = 5,138,261,015.58
  5. Step 5: Solve for x
    x = 5,138,261,015.58/74,320.20
  6. Step 6: Final answer
    x = 69,136.80

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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.