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Finding the Fourth Proportional to 91,957.69, 126,901.51 and 53,743.51

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Solution

The fourth proportional to 91,957.69, 126,901.51 and 53,743.51 is: 74,165.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,957.69 : 126,901.51 = 53,743.51 : x
  2. Step 2: Convert to fraction form
    91,957.69/126,901.51 = 53,743.51/x
  3. Step 3: Cross multiply
    91,957.69x = 126,901.51 × 53,743.51
  4. Step 4: Simplify right side
    91,957.69x = 6,820,132,571.70
  5. Step 5: Solve for x
    x = 6,820,132,571.70/91,957.69
  6. Step 6: Final answer
    x = 74,165.98

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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.