Home / 84,801.21-127,204.51-42,658.26

Finding the Fourth Proportional to 84,801.21, 127,204.51 and 42,658.26

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Solution

The fourth proportional to 84,801.21, 127,204.51 and 42,658.26 is: 63,988.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,801.21 : 127,204.51 = 42,658.26 : x
  2. Step 2: Convert to fraction form
    84,801.21/127,204.51 = 42,658.26/x
  3. Step 3: Cross multiply
    84,801.21x = 127,204.51 × 42,658.26
  4. Step 4: Simplify right side
    84,801.21x = 5,426,323,060.75
  5. Step 5: Solve for x
    x = 5,426,323,060.75/84,801.21
  6. Step 6: Final answer
    x = 63,988.75

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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.