Home / 84,087.14-126,067.50-39,688.64

Finding the Fourth Proportional to 84,087.14, 126,067.50 and 39,688.64

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Solution

The fourth proportional to 84,087.14, 126,067.50 and 39,688.64 is: 59,503.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,087.14 : 126,067.50 = 39,688.64 : x
  2. Step 2: Convert to fraction form
    84,087.14/126,067.50 = 39,688.64/x
  3. Step 3: Cross multiply
    84,087.14x = 126,067.50 × 39,688.64
  4. Step 4: Simplify right side
    84,087.14x = 5,003,447,623.20
  5. Step 5: Solve for x
    x = 5,003,447,623.20/84,087.14
  6. Step 6: Final answer
    x = 59,503.13

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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.