Home / 91,005.36-136,503.28-34,872.36

Finding the Fourth Proportional to 91,005.36, 136,503.28 and 34,872.36

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Solution

The fourth proportional to 91,005.36, 136,503.28 and 34,872.36 is: 52,306.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,005.36 : 136,503.28 = 34,872.36 : x
  2. Step 2: Convert to fraction form
    91,005.36/136,503.28 = 34,872.36/x
  3. Step 3: Cross multiply
    91,005.36x = 136,503.28 × 34,872.36
  4. Step 4: Simplify right side
    91,005.36x = 4,760,191,521.34
  5. Step 5: Solve for x
    x = 4,760,191,521.34/91,005.36
  6. Step 6: Final answer
    x = 52,306.72

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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.