Home / 91,957.08-126,896.72-53,720.17

Finding the Fourth Proportional to 91,957.08, 126,896.72 and 53,720.17

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Solution

The fourth proportional to 91,957.08, 126,896.72 and 53,720.17 is: 74,131.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,957.08 : 126,896.72 = 53,720.17 : x
  2. Step 2: Convert to fraction form
    91,957.08/126,896.72 = 53,720.17/x
  3. Step 3: Cross multiply
    91,957.08x = 126,896.72 × 53,720.17
  4. Step 4: Simplify right side
    91,957.08x = 6,816,913,370.84
  5. Step 5: Solve for x
    x = 6,816,913,370.84/91,957.08
  6. Step 6: Final answer
    x = 74,131.47

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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.