Home / 84,255.27-126,369.15-28,095.84

Finding the Fourth Proportional to 84,255.27, 126,369.15 and 28,095.84

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Solution

The fourth proportional to 84,255.27, 126,369.15 and 28,095.84 is: 42,139.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,255.27 : 126,369.15 = 28,095.84 : x
  2. Step 2: Convert to fraction form
    84,255.27/126,369.15 = 28,095.84/x
  3. Step 3: Cross multiply
    84,255.27x = 126,369.15 × 28,095.84
  4. Step 4: Simplify right side
    84,255.27x = 3,550,447,313.98
  5. Step 5: Solve for x
    x = 3,550,447,313.98/84,255.27
  6. Step 6: Final answer
    x = 42,139.17

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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.