Home / 84,448.10-126,672.15-51,205.70

Finding the Fourth Proportional to 84,448.10, 126,672.15 and 51,205.70

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Solution

The fourth proportional to 84,448.10, 126,672.15 and 51,205.70 is: 76,808.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,448.10 : 126,672.15 = 51,205.70 : x
  2. Step 2: Convert to fraction form
    84,448.10/126,672.15 = 51,205.70/x
  3. Step 3: Cross multiply
    84,448.10x = 126,672.15 × 51,205.70
  4. Step 4: Simplify right side
    84,448.10x = 6,486,336,111.26
  5. Step 5: Solve for x
    x = 6,486,336,111.26/84,448.10
  6. Step 6: Final answer
    x = 76,808.55

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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.