Home / 84,099.75-126,152.06-21,770.25

Finding the Fourth Proportional to 84,099.75, 126,152.06 and 21,770.25

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Solution

The fourth proportional to 84,099.75, 126,152.06 and 21,770.25 is: 32,656.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,099.75 : 126,152.06 = 21,770.25 : x
  2. Step 2: Convert to fraction form
    84,099.75/126,152.06 = 21,770.25/x
  3. Step 3: Cross multiply
    84,099.75x = 126,152.06 × 21,770.25
  4. Step 4: Simplify right side
    84,099.75x = 2,746,361,775.36
  5. Step 5: Solve for x
    x = 2,746,361,775.36/84,099.75
  6. Step 6: Final answer
    x = 32,656.00

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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.