Home / 84,270.74-126,406.59-28,110.71

Finding the Fourth Proportional to 84,270.74, 126,406.59 and 28,110.71

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Solution

The fourth proportional to 84,270.74, 126,406.59 and 28,110.71 is: 42,166.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,270.74 : 126,406.59 = 28,110.71 : x
  2. Step 2: Convert to fraction form
    84,270.74/126,406.59 = 28,110.71/x
  3. Step 3: Cross multiply
    84,270.74x = 126,406.59 × 28,110.71
  4. Step 4: Simplify right side
    84,270.74x = 3,553,378,361.55
  5. Step 5: Solve for x
    x = 3,553,378,361.55/84,270.74
  6. Step 6: Final answer
    x = 42,166.22

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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.