Home / 91,451.72-126,246.51-68,799.35

Finding the Fourth Proportional to 91,451.72, 126,246.51 and 68,799.35

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Solution

The fourth proportional to 91,451.72, 126,246.51 and 68,799.35 is: 94,975.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,451.72 : 126,246.51 = 68,799.35 : x
  2. Step 2: Convert to fraction form
    91,451.72/126,246.51 = 68,799.35/x
  3. Step 3: Cross multiply
    91,451.72x = 126,246.51 × 68,799.35
  4. Step 4: Simplify right side
    91,451.72x = 8,685,677,827.77
  5. Step 5: Solve for x
    x = 8,685,677,827.77/91,451.72
  6. Step 6: Final answer
    x = 94,975.55

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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.