Home / 84,454.14-126,696.54-28,288.74

Finding the Fourth Proportional to 84,454.14, 126,696.54 and 28,288.74

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Solution

The fourth proportional to 84,454.14, 126,696.54 and 28,288.74 is: 42,438.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,454.14 : 126,696.54 = 28,288.74 : x
  2. Step 2: Convert to fraction form
    84,454.14/126,696.54 = 28,288.74/x
  3. Step 3: Cross multiply
    84,454.14x = 126,696.54 × 28,288.74
  4. Step 4: Simplify right side
    84,454.14x = 3,584,085,478.96
  5. Step 5: Solve for x
    x = 3,584,085,478.96/84,454.14
  6. Step 6: Final answer
    x = 42,438.24

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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.