Home / 91,939.15-126,888.81-51,656.03

Finding the Fourth Proportional to 91,939.15, 126,888.81 and 51,656.03

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Solution

The fourth proportional to 91,939.15, 126,888.81 and 51,656.03 is: 71,292.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,939.15 : 126,888.81 = 51,656.03 : x
  2. Step 2: Convert to fraction form
    91,939.15/126,888.81 = 51,656.03/x
  3. Step 3: Cross multiply
    91,939.15x = 126,888.81 × 51,656.03
  4. Step 4: Simplify right side
    91,939.15x = 6,554,571,541.58
  5. Step 5: Solve for x
    x = 6,554,571,541.58/91,939.15
  6. Step 6: Final answer
    x = 71,292.50

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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.