Home / 91,688.72-126,530.87-53,474.76

Finding the Fourth Proportional to 91,688.72, 126,530.87 and 53,474.76

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Solution

The fourth proportional to 91,688.72, 126,530.87 and 53,474.76 is: 73,795.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,688.72 : 126,530.87 = 53,474.76 : x
  2. Step 2: Convert to fraction form
    91,688.72/126,530.87 = 53,474.76/x
  3. Step 3: Cross multiply
    91,688.72x = 126,530.87 × 53,474.76
  4. Step 4: Simplify right side
    91,688.72x = 6,766,207,638.47
  5. Step 5: Solve for x
    x = 6,766,207,638.47/91,688.72
  6. Step 6: Final answer
    x = 73,795.42

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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.