Home / 45,848.33-68,772.73-20,870.91

Finding the Fourth Proportional to 45,848.33, 68,772.73 and 20,870.91

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Solution

The fourth proportional to 45,848.33, 68,772.73 and 20,870.91 is: 31,306.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,848.33 : 68,772.73 = 20,870.91 : x
  2. Step 2: Convert to fraction form
    45,848.33/68,772.73 = 20,870.91/x
  3. Step 3: Cross multiply
    45,848.33x = 68,772.73 × 20,870.91
  4. Step 4: Simplify right side
    45,848.33x = 1,435,349,372.32
  5. Step 5: Solve for x
    x = 1,435,349,372.32/45,848.33
  6. Step 6: Final answer
    x = 31,306.47

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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.