Home / 91,628.94-126,436.19-51,332.79

Finding the Fourth Proportional to 91,628.94, 126,436.19 and 51,332.79

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Solution

The fourth proportional to 91,628.94, 126,436.19 and 51,332.79 is: 70,832.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,628.94 : 126,436.19 = 51,332.79 : x
  2. Step 2: Convert to fraction form
    91,628.94/126,436.19 = 51,332.79/x
  3. Step 3: Cross multiply
    91,628.94x = 126,436.19 × 51,332.79
  4. Step 4: Simplify right side
    91,628.94x = 6,490,322,389.67
  5. Step 5: Solve for x
    x = 6,490,322,389.67/91,628.94
  6. Step 6: Final answer
    x = 70,832.67

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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.