Home / 91,274.23-136,915.14-31,343.89

Finding the Fourth Proportional to 91,274.23, 136,915.14 and 31,343.89

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Solution

The fourth proportional to 91,274.23, 136,915.14 and 31,343.89 is: 47,017.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,274.23 : 136,915.14 = 31,343.89 : x
  2. Step 2: Convert to fraction form
    91,274.23/136,915.14 = 31,343.89/x
  3. Step 3: Cross multiply
    91,274.23x = 136,915.14 × 31,343.89
  4. Step 4: Simplify right side
    91,274.23x = 4,291,453,087.49
  5. Step 5: Solve for x
    x = 4,291,453,087.49/91,274.23
  6. Step 6: Final answer
    x = 47,017.14

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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.