Home / 84,086.36-126,138.18-48,587.48

Finding the Fourth Proportional to 84,086.36, 126,138.18 and 48,587.48

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Solution

The fourth proportional to 84,086.36, 126,138.18 and 48,587.48 is: 72,886.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,086.36 : 126,138.18 = 48,587.48 : x
  2. Step 2: Convert to fraction form
    84,086.36/126,138.18 = 48,587.48/x
  3. Step 3: Cross multiply
    84,086.36x = 126,138.18 × 48,587.48
  4. Step 4: Simplify right side
    84,086.36x = 6,128,736,297.99
  5. Step 5: Solve for x
    x = 6,128,736,297.99/84,086.36
  6. Step 6: Final answer
    x = 72,886.21

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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.