Home / 91,889.23-137,852.98-28,706.80

Finding the Fourth Proportional to 91,889.23, 137,852.98 and 28,706.80

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Solution

The fourth proportional to 91,889.23, 137,852.98 and 28,706.80 is: 43,066.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,889.23 : 137,852.98 = 28,706.80 : x
  2. Step 2: Convert to fraction form
    91,889.23/137,852.98 = 28,706.80/x
  3. Step 3: Cross multiply
    91,889.23x = 137,852.98 × 28,706.80
  4. Step 4: Simplify right side
    91,889.23x = 3,957,317,768.34
  5. Step 5: Solve for x
    x = 3,957,317,768.34/91,889.23
  6. Step 6: Final answer
    x = 43,066.18

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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.