Home / 84,390.08-126,612.83-34,512.12

Finding the Fourth Proportional to 84,390.08, 126,612.83 and 34,512.12

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Solution

The fourth proportional to 84,390.08, 126,612.83 and 34,512.12 is: 51,779.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,390.08 : 126,612.83 = 34,512.12 : x
  2. Step 2: Convert to fraction form
    84,390.08/126,612.83 = 34,512.12/x
  3. Step 3: Cross multiply
    84,390.08x = 126,612.83 × 34,512.12
  4. Step 4: Simplify right side
    84,390.08x = 4,369,677,009.94
  5. Step 5: Solve for x
    x = 4,369,677,009.94/84,390.08
  6. Step 6: Final answer
    x = 51,779.51

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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.