Home / 91,028.32-136,603.92-31,864.48

Finding the Fourth Proportional to 91,028.32, 136,603.92 and 31,864.48

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Solution

The fourth proportional to 91,028.32, 136,603.92 and 31,864.48 is: 47,818.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,028.32 : 136,603.92 = 31,864.48 : x
  2. Step 2: Convert to fraction form
    91,028.32/136,603.92 = 31,864.48/x
  3. Step 3: Cross multiply
    91,028.32x = 136,603.92 × 31,864.48
  4. Step 4: Simplify right side
    91,028.32x = 4,352,812,876.76
  5. Step 5: Solve for x
    x = 4,352,812,876.76/91,028.32
  6. Step 6: Final answer
    x = 47,818.23

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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.