Home / 91,686.11-126,534.11-53,967.65

Finding the Fourth Proportional to 91,686.11, 126,534.11 and 53,967.65

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Solution

The fourth proportional to 91,686.11, 126,534.11 and 53,967.65 is: 74,479.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,686.11 : 126,534.11 = 53,967.65 : x
  2. Step 2: Convert to fraction form
    91,686.11/126,534.11 = 53,967.65/x
  3. Step 3: Cross multiply
    91,686.11x = 126,534.11 × 53,967.65
  4. Step 4: Simplify right side
    91,686.11x = 6,828,747,659.03
  5. Step 5: Solve for x
    x = 6,828,747,659.03/91,686.11
  6. Step 6: Final answer
    x = 74,479.64

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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.