Home / 84,550.05-126,839.70-28,395.59

Finding the Fourth Proportional to 84,550.05, 126,839.70 and 28,395.59

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Solution

The fourth proportional to 84,550.05, 126,839.70 and 28,395.59 is: 42,598.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,550.05 : 126,839.70 = 28,395.59 : x
  2. Step 2: Convert to fraction form
    84,550.05/126,839.70 = 28,395.59/x
  3. Step 3: Cross multiply
    84,550.05x = 126,839.70 × 28,395.59
  4. Step 4: Simplify right side
    84,550.05x = 3,601,687,482.72
  5. Step 5: Solve for x
    x = 3,601,687,482.72/84,550.05
  6. Step 6: Final answer
    x = 42,598.29

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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.