Home / 91,077.75-125,672.40-50,790.48

Finding the Fourth Proportional to 91,077.75, 125,672.40 and 50,790.48

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Solution

The fourth proportional to 91,077.75, 125,672.40 and 50,790.48 is: 70,082.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,077.75 : 125,672.40 = 50,790.48 : x
  2. Step 2: Convert to fraction form
    91,077.75/125,672.40 = 50,790.48/x
  3. Step 3: Cross multiply
    91,077.75x = 125,672.40 × 50,790.48
  4. Step 4: Simplify right side
    91,077.75x = 6,382,961,518.75
  5. Step 5: Solve for x
    x = 6,382,961,518.75/91,077.75
  6. Step 6: Final answer
    x = 70,082.56

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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.