Home / 124,922.28-187,383.51-31,428

Finding the Fourth Proportional to 124,922.28, 187,383.51 and 31,428

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Solution

The fourth proportional to 124,922.28, 187,383.51 and 31,428 is: 47,142.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,922.28 : 187,383.51 = 31,428 : x
  2. Step 2: Convert to fraction form
    124,922.28/187,383.51 = 31,428/x
  3. Step 3: Cross multiply
    124,922.28x = 187,383.51 × 31,428
  4. Step 4: Simplify right side
    124,922.28x = 5,889,088,952.28
  5. Step 5: Solve for x
    x = 5,889,088,952.28/124,922.28
  6. Step 6: Final answer
    x = 47,142.02

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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.