Home / 84,869.16-127,302.30-28,697.28

Finding the Fourth Proportional to 84,869.16, 127,302.30 and 28,697.28

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Solution

The fourth proportional to 84,869.16, 127,302.30 and 28,697.28 is: 43,045.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,869.16 : 127,302.30 = 28,697.28 : x
  2. Step 2: Convert to fraction form
    84,869.16/127,302.30 = 28,697.28/x
  3. Step 3: Cross multiply
    84,869.16x = 127,302.30 × 28,697.28
  4. Step 4: Simplify right side
    84,869.16x = 3,653,229,747.74
  5. Step 5: Solve for x
    x = 3,653,229,747.74/84,869.16
  6. Step 6: Final answer
    x = 43,045.43

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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.