Home / 84,017.64-126,039.24-28,600.68

Finding the Fourth Proportional to 84,017.64, 126,039.24 and 28,600.68

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Solution

The fourth proportional to 84,017.64, 126,039.24 and 28,600.68 is: 42,905.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,017.64 : 126,039.24 = 28,600.68 : x
  2. Step 2: Convert to fraction form
    84,017.64/126,039.24 = 28,600.68/x
  3. Step 3: Cross multiply
    84,017.64x = 126,039.24 × 28,600.68
  4. Step 4: Simplify right side
    84,017.64x = 3,604,807,970.68
  5. Step 5: Solve for x
    x = 3,604,807,970.68/84,017.64
  6. Step 6: Final answer
    x = 42,905.37

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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.