Home / 79,272.81-109,397.33-45,285.81

Finding the Fourth Proportional to 79,272.81, 109,397.33 and 45,285.81

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Solution

The fourth proportional to 79,272.81, 109,397.33 and 45,285.81 is: 62,494.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,272.81 : 109,397.33 = 45,285.81 : x
  2. Step 2: Convert to fraction form
    79,272.81/109,397.33 = 45,285.81/x
  3. Step 3: Cross multiply
    79,272.81x = 109,397.33 × 45,285.81
  4. Step 4: Simplify right side
    79,272.81x = 4,954,146,474.46
  5. Step 5: Solve for x
    x = 4,954,146,474.46/79,272.81
  6. Step 6: Final answer
    x = 62,494.90

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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.