Home / 90,311.46-124,617.48-50,015.28

Finding the Fourth Proportional to 90,311.46, 124,617.48 and 50,015.28

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Solution

The fourth proportional to 90,311.46, 124,617.48 and 50,015.28 is: 69,014.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,311.46 : 124,617.48 = 50,015.28 : x
  2. Step 2: Convert to fraction form
    90,311.46/124,617.48 = 50,015.28/x
  3. Step 3: Cross multiply
    90,311.46x = 124,617.48 × 50,015.28
  4. Step 4: Simplify right side
    90,311.46x = 6,232,778,155.09
  5. Step 5: Solve for x
    x = 6,232,778,155.09/90,311.46
  6. Step 6: Final answer
    x = 69,014.26

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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.