Home / 187,721.81-281,583.65-47,480.57

Finding the Fourth Proportional to 187,721.81, 281,583.65 and 47,480.57

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Solution

The fourth proportional to 187,721.81, 281,583.65 and 47,480.57 is: 71,221.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,721.81 : 281,583.65 = 47,480.57 : x
  2. Step 2: Convert to fraction form
    187,721.81/281,583.65 = 47,480.57/x
  3. Step 3: Cross multiply
    187,721.81x = 281,583.65 × 47,480.57
  4. Step 4: Simplify right side
    187,721.81x = 13,369,750,915.46
  5. Step 5: Solve for x
    x = 13,369,750,915.46/187,721.81
  6. Step 6: Final answer
    x = 71,221.09

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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.