Home / 91,678.45-126,516.71-53,464.49

Finding the Fourth Proportional to 91,678.45, 126,516.71 and 53,464.49

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Solution

The fourth proportional to 91,678.45, 126,516.71 and 53,464.49 is: 73,781.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,678.45 : 126,516.71 = 53,464.49 : x
  2. Step 2: Convert to fraction form
    91,678.45/126,516.71 = 53,464.49/x
  3. Step 3: Cross multiply
    91,678.45x = 126,516.71 × 53,464.49
  4. Step 4: Simplify right side
    91,678.45x = 6,764,151,376.63
  5. Step 5: Solve for x
    x = 6,764,151,376.63/91,678.45
  6. Step 6: Final answer
    x = 73,781.26

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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.