Home / 84,345.48-126,476.88-28,166.28

Finding the Fourth Proportional to 84,345.48, 126,476.88 and 28,166.28

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Solution

The fourth proportional to 84,345.48, 126,476.88 and 28,166.28 is: 42,235.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,345.48 : 126,476.88 = 28,166.28 : x
  2. Step 2: Convert to fraction form
    84,345.48/126,476.88 = 28,166.28/x
  3. Step 3: Cross multiply
    84,345.48x = 126,476.88 × 28,166.28
  4. Step 4: Simplify right side
    84,345.48x = 3,562,383,215.61
  5. Step 5: Solve for x
    x = 3,562,383,215.61/84,345.48
  6. Step 6: Final answer
    x = 42,235.61

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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.