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Finding the Fourth Proportional to 84,903.30, 127,347.57 and 28,742.22

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Solution

The fourth proportional to 84,903.30, 127,347.57 and 28,742.22 is: 43,110.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,903.30 : 127,347.57 = 28,742.22 : x
  2. Step 2: Convert to fraction form
    84,903.30/127,347.57 = 28,742.22/x
  3. Step 3: Cross multiply
    84,903.30x = 127,347.57 × 28,742.22
  4. Step 4: Simplify right side
    84,903.30x = 3,660,251,873.41
  5. Step 5: Solve for x
    x = 3,660,251,873.41/84,903.30
  6. Step 6: Final answer
    x = 43,110.83

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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.