Home / 91,239.17-125,908.79-53,020.32

Finding the Fourth Proportional to 91,239.17, 125,908.79 and 53,020.32

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Solution

The fourth proportional to 91,239.17, 125,908.79 and 53,020.32 is: 73,167.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,239.17 : 125,908.79 = 53,020.32 : x
  2. Step 2: Convert to fraction form
    91,239.17/125,908.79 = 53,020.32/x
  3. Step 3: Cross multiply
    91,239.17x = 125,908.79 × 53,020.32
  4. Step 4: Simplify right side
    91,239.17x = 6,675,724,469.16
  5. Step 5: Solve for x
    x = 6,675,724,469.16/91,239.17
  6. Step 6: Final answer
    x = 73,167.31

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1.5x scale

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.