Home / 91,853.51-126,749.61-53,616.40

Finding the Fourth Proportional to 91,853.51, 126,749.61 and 53,616.40

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Solution

The fourth proportional to 91,853.51, 126,749.61 and 53,616.40 is: 73,985.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,853.51 : 126,749.61 = 53,616.40 : x
  2. Step 2: Convert to fraction form
    91,853.51/126,749.61 = 53,616.40/x
  3. Step 3: Cross multiply
    91,853.51x = 126,749.61 × 53,616.40
  4. Step 4: Simplify right side
    91,853.51x = 6,795,857,472.73
  5. Step 5: Solve for x
    x = 6,795,857,472.73/91,853.51
  6. Step 6: Final answer
    x = 73,985.82

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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.