Home / 91,818.06-137,800.92-47,457.84

Finding the Fourth Proportional to 91,818.06, 137,800.92 and 47,457.84

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Solution

The fourth proportional to 91,818.06, 137,800.92 and 47,457.84 is: 71,224.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,818.06 : 137,800.92 = 47,457.84 : x
  2. Step 2: Convert to fraction form
    91,818.06/137,800.92 = 47,457.84/x
  3. Step 3: Cross multiply
    91,818.06x = 137,800.92 × 47,457.84
  4. Step 4: Simplify right side
    91,818.06x = 6,539,734,013.21
  5. Step 5: Solve for x
    x = 6,539,734,013.21/91,818.06
  6. Step 6: Final answer
    x = 71,224.92

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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.