Home / 77,261.28-106,616.88-47,447.52

Finding the Fourth Proportional to 77,261.28, 106,616.88 and 47,447.52

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Solution

The fourth proportional to 77,261.28, 106,616.88 and 47,447.52 is: 65,475.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,261.28 : 106,616.88 = 47,447.52 : x
  2. Step 2: Convert to fraction form
    77,261.28/106,616.88 = 47,447.52/x
  3. Step 3: Cross multiply
    77,261.28x = 106,616.88 × 47,447.52
  4. Step 4: Simplify right side
    77,261.28x = 5,058,706,546.14
  5. Step 5: Solve for x
    x = 5,058,706,546.14/77,261.28
  6. Step 6: Final answer
    x = 65,475.31

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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.