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Finding the Fourth Proportional to 84,803.71, 127,210.02 and 25,637.88

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Solution

The fourth proportional to 84,803.71, 127,210.02 and 25,637.88 is: 38,458.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,803.71 : 127,210.02 = 25,637.88 : x
  2. Step 2: Convert to fraction form
    84,803.71/127,210.02 = 25,637.88/x
  3. Step 3: Cross multiply
    84,803.71x = 127,210.02 × 25,637.88
  4. Step 4: Simplify right side
    84,803.71x = 3,261,395,227.56
  5. Step 5: Solve for x
    x = 3,261,395,227.56/84,803.71
  6. Step 6: Final answer
    x = 38,458.17

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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.