Home / 84,284.74-126,384.77-28,104.96

Finding the Fourth Proportional to 84,284.74, 126,384.77 and 28,104.96

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Solution

The fourth proportional to 84,284.74, 126,384.77 and 28,104.96 is: 42,143.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,284.74 : 126,384.77 = 28,104.96 : x
  2. Step 2: Convert to fraction form
    84,284.74/126,384.77 = 28,104.96/x
  3. Step 3: Cross multiply
    84,284.74x = 126,384.77 × 28,104.96
  4. Step 4: Simplify right side
    84,284.74x = 3,552,038,905.46
  5. Step 5: Solve for x
    x = 3,552,038,905.46/84,284.74
  6. Step 6: Final answer
    x = 42,143.32

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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.