Home / 90,711.40-125,181.06-50,428.84

Finding the Fourth Proportional to 90,711.40, 125,181.06 and 50,428.84

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Solution

The fourth proportional to 90,711.40, 125,181.06 and 50,428.84 is: 69,591.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,711.40 : 125,181.06 = 50,428.84 : x
  2. Step 2: Convert to fraction form
    90,711.40/125,181.06 = 50,428.84/x
  3. Step 3: Cross multiply
    90,711.40x = 125,181.06 × 50,428.84
  4. Step 4: Simplify right side
    90,711.40x = 6,312,735,645.77
  5. Step 5: Solve for x
    x = 6,312,735,645.77/90,711.40
  6. Step 6: Final answer
    x = 69,591.43

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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.