Home / 84,861.47-127,310.43-28,698.81

Finding the Fourth Proportional to 84,861.47, 127,310.43 and 28,698.81

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Solution

The fourth proportional to 84,861.47, 127,310.43 and 28,698.81 is: 43,054.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,861.47 : 127,310.43 = 28,698.81 : x
  2. Step 2: Convert to fraction form
    84,861.47/127,310.43 = 28,698.81/x
  3. Step 3: Cross multiply
    84,861.47x = 127,310.43 × 28,698.81
  4. Step 4: Simplify right side
    84,861.47x = 3,653,657,471.79
  5. Step 5: Solve for x
    x = 3,653,657,471.79/84,861.47
  6. Step 6: Final answer
    x = 43,054.37

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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.