Home / 51,329.12-70,834.56-30,108.80

Finding the Fourth Proportional to 51,329.12, 70,834.56 and 30,108.80

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Solution

The fourth proportional to 51,329.12, 70,834.56 and 30,108.80 is: 41,550.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,329.12 : 70,834.56 = 30,108.80 : x
  2. Step 2: Convert to fraction form
    51,329.12/70,834.56 = 30,108.80/x
  3. Step 3: Cross multiply
    51,329.12x = 70,834.56 × 30,108.80
  4. Step 4: Simplify right side
    51,329.12x = 2,132,743,600.13
  5. Step 5: Solve for x
    x = 2,132,743,600.13/51,329.12
  6. Step 6: Final answer
    x = 41,550.36

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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.