Home / 90,438.66-124,812.90-50,156.28

Finding the Fourth Proportional to 90,438.66, 124,812.90 and 50,156.28

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Solution

The fourth proportional to 90,438.66, 124,812.90 and 50,156.28 is: 69,219.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,438.66 : 124,812.90 = 50,156.28 : x
  2. Step 2: Convert to fraction form
    90,438.66/124,812.90 = 50,156.28/x
  3. Step 3: Cross multiply
    90,438.66x = 124,812.90 × 50,156.28
  4. Step 4: Simplify right side
    90,438.66x = 6,260,150,760.01
  5. Step 5: Solve for x
    x = 6,260,150,760.01/90,438.66
  6. Step 6: Final answer
    x = 69,219.85

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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.