Home / 74,178.28-110,605.75-65,935.72

Finding the Fourth Proportional to 74,178.28, 110,605.75 and 65,935.72

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Solution

The fourth proportional to 74,178.28, 110,605.75 and 65,935.72 is: 98,315.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,178.28 : 110,605.75 = 65,935.72 : x
  2. Step 2: Convert to fraction form
    74,178.28/110,605.75 = 65,935.72/x
  3. Step 3: Cross multiply
    74,178.28x = 110,605.75 × 65,935.72
  4. Step 4: Simplify right side
    74,178.28x = 7,292,869,762.39
  5. Step 5: Solve for x
    x = 7,292,869,762.39/74,178.28
  6. Step 6: Final answer
    x = 98,315.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.