Home / 91,053.51-136,598.69-31,930.80

Finding the Fourth Proportional to 91,053.51, 136,598.69 and 31,930.80

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Solution

The fourth proportional to 91,053.51, 136,598.69 and 31,930.80 is: 47,902.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,053.51 : 136,598.69 = 31,930.80 : x
  2. Step 2: Convert to fraction form
    91,053.51/136,598.69 = 31,930.80/x
  3. Step 3: Cross multiply
    91,053.51x = 136,598.69 × 31,930.80
  4. Step 4: Simplify right side
    91,053.51x = 4,361,705,450.65
  5. Step 5: Solve for x
    x = 4,361,705,450.65/91,053.51
  6. Step 6: Final answer
    x = 47,902.66

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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.