Home / 77,371.28-106,781-45,548.08

Finding the Fourth Proportional to 77,371.28, 106,781 and 45,548.08

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Solution

The fourth proportional to 77,371.28, 106,781 and 45,548.08 is: 62,861.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,371.28 : 106,781 = 45,548.08 : x
  2. Step 2: Convert to fraction form
    77,371.28/106,781 = 45,548.08/x
  3. Step 3: Cross multiply
    77,371.28x = 106,781 × 45,548.08
  4. Step 4: Simplify right side
    77,371.28x = 4,863,669,530.48
  5. Step 5: Solve for x
    x = 4,863,669,530.48/77,371.28
  6. Step 6: Final answer
    x = 62,861.43

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1.5x scale

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.