Home / 84,628.08-126,953.04-28,443.96

Finding the Fourth Proportional to 84,628.08, 126,953.04 and 28,443.96

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Solution

The fourth proportional to 84,628.08, 126,953.04 and 28,443.96 is: 42,669.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,628.08 : 126,953.04 = 28,443.96 : x
  2. Step 2: Convert to fraction form
    84,628.08/126,953.04 = 28,443.96/x
  3. Step 3: Cross multiply
    84,628.08x = 126,953.04 × 28,443.96
  4. Step 4: Simplify right side
    84,628.08x = 3,611,047,191.64
  5. Step 5: Solve for x
    x = 3,611,047,191.64/84,628.08
  6. Step 6: Final answer
    x = 42,669.61

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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.