Home / 91,313.76-126,012.98-55,497.08

Finding the Fourth Proportional to 91,313.76, 126,012.98 and 55,497.08

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Solution

The fourth proportional to 91,313.76, 126,012.98 and 55,497.08 is: 76,585.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,313.76 : 126,012.98 = 55,497.08 : x
  2. Step 2: Convert to fraction form
    91,313.76/126,012.98 = 55,497.08/x
  3. Step 3: Cross multiply
    91,313.76x = 126,012.98 × 55,497.08
  4. Step 4: Simplify right side
    91,313.76x = 6,993,352,432.10
  5. Step 5: Solve for x
    x = 6,993,352,432.10/91,313.76
  6. Step 6: Final answer
    x = 76,585.97

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1.5x scale

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.