Home / 76,857.24-106,058.97-42,869.28

Finding the Fourth Proportional to 76,857.24, 106,058.97 and 42,869.28

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Solution

The fourth proportional to 76,857.24, 106,058.97 and 42,869.28 is: 59,157.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,857.24 : 106,058.97 = 42,869.28 : x
  2. Step 2: Convert to fraction form
    76,857.24/106,058.97 = 42,869.28/x
  3. Step 3: Cross multiply
    76,857.24x = 106,058.97 × 42,869.28
  4. Step 4: Simplify right side
    76,857.24x = 4,546,671,681.44
  5. Step 5: Solve for x
    x = 4,546,671,681.44/76,857.24
  6. Step 6: Final answer
    x = 59,157.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.