Home / 66,285.50-99,428.22-54,574.11

Finding the Fourth Proportional to 66,285.50, 99,428.22 and 54,574.11

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Solution

The fourth proportional to 66,285.50, 99,428.22 and 54,574.11 is: 81,861.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,285.50 : 99,428.22 = 54,574.11 : x
  2. Step 2: Convert to fraction form
    66,285.50/99,428.22 = 54,574.11/x
  3. Step 3: Cross multiply
    66,285.50x = 99,428.22 × 54,574.11
  4. Step 4: Simplify right side
    66,285.50x = 5,426,206,615.38
  5. Step 5: Solve for x
    x = 5,426,206,615.38/66,285.50
  6. Step 6: Final answer
    x = 81,861.15

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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.