Home / 84,685.05-127,027.63-21,509.91

Finding the Fourth Proportional to 84,685.05, 127,027.63 and 21,509.91

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Solution

The fourth proportional to 84,685.05, 127,027.63 and 21,509.91 is: 32,264.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,685.05 : 127,027.63 = 21,509.91 : x
  2. Step 2: Convert to fraction form
    84,685.05/127,027.63 = 21,509.91/x
  3. Step 3: Cross multiply
    84,685.05x = 127,027.63 × 21,509.91
  4. Step 4: Simplify right side
    84,685.05x = 2,732,352,888.81
  5. Step 5: Solve for x
    x = 2,732,352,888.81/84,685.05
  6. Step 6: Final answer
    x = 32,264.88

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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.