Home / 91,076.20-136,674.95-31,911.77

Finding the Fourth Proportional to 91,076.20, 136,674.95 and 31,911.77

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Solution

The fourth proportional to 91,076.20, 136,674.95 and 31,911.77 is: 47,888.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,076.20 : 136,674.95 = 31,911.77 : x
  2. Step 2: Convert to fraction form
    91,076.20/136,674.95 = 31,911.77/x
  3. Step 3: Cross multiply
    91,076.20x = 136,674.95 × 31,911.77
  4. Step 4: Simplify right side
    91,076.20x = 4,361,539,751.29
  5. Step 5: Solve for x
    x = 4,361,539,751.29/91,076.20
  6. Step 6: Final answer
    x = 47,888.91

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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.