Home / 91,783.24-137,688.91-49,669.30

Finding the Fourth Proportional to 91,783.24, 137,688.91 and 49,669.30

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Solution

The fourth proportional to 91,783.24, 137,688.91 and 49,669.30 is: 74,511.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,783.24 : 137,688.91 = 49,669.30 : x
  2. Step 2: Convert to fraction form
    91,783.24/137,688.91 = 49,669.30/x
  3. Step 3: Cross multiply
    91,783.24x = 137,688.91 × 49,669.30
  4. Step 4: Simplify right side
    91,783.24x = 6,838,912,104.79
  5. Step 5: Solve for x
    x = 6,838,912,104.79/91,783.24
  6. Step 6: Final answer
    x = 74,511.55

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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.