Home / 71,861.96-99,165.54-40,030.28

Finding the Fourth Proportional to 71,861.96, 99,165.54 and 40,030.28

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Solution

The fourth proportional to 71,861.96, 99,165.54 and 40,030.28 is: 55,239.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,861.96 : 99,165.54 = 40,030.28 : x
  2. Step 2: Convert to fraction form
    71,861.96/99,165.54 = 40,030.28/x
  3. Step 3: Cross multiply
    71,861.96x = 99,165.54 × 40,030.28
  4. Step 4: Simplify right side
    71,861.96x = 3,969,624,332.55
  5. Step 5: Solve for x
    x = 3,969,624,332.55/71,861.96
  6. Step 6: Final answer
    x = 55,239.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.