Home / 91,818.09-137,431.88-47,384.33

Finding the Fourth Proportional to 91,818.09, 137,431.88 and 47,384.33

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Solution

The fourth proportional to 91,818.09, 137,431.88 and 47,384.33 is: 70,924.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,818.09 : 137,431.88 = 47,384.33 : x
  2. Step 2: Convert to fraction form
    91,818.09/137,431.88 = 47,384.33/x
  3. Step 3: Cross multiply
    91,818.09x = 137,431.88 × 47,384.33
  4. Step 4: Simplify right side
    91,818.09x = 6,512,116,630.36
  5. Step 5: Solve for x
    x = 6,512,116,630.36/91,818.09
  6. Step 6: Final answer
    x = 70,924.11

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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.