Home / 91,288.80-125,979.17-51,004.26

Finding the Fourth Proportional to 91,288.80, 125,979.17 and 51,004.26

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Solution

The fourth proportional to 91,288.80, 125,979.17 and 51,004.26 is: 70,386.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,288.80 : 125,979.17 = 51,004.26 : x
  2. Step 2: Convert to fraction form
    91,288.80/125,979.17 = 51,004.26/x
  3. Step 3: Cross multiply
    91,288.80x = 125,979.17 × 51,004.26
  4. Step 4: Simplify right side
    91,288.80x = 6,425,474,162.27
  5. Step 5: Solve for x
    x = 6,425,474,162.27/91,288.80
  6. Step 6: Final answer
    x = 70,386.23

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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.