Home / 90,457.56-124,831.38-50,177.40

Finding the Fourth Proportional to 90,457.56, 124,831.38 and 50,177.40

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Solution

The fourth proportional to 90,457.56, 124,831.38 and 50,177.40 is: 69,244.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,457.56 : 124,831.38 = 50,177.40 : x
  2. Step 2: Convert to fraction form
    90,457.56/124,831.38 = 50,177.40/x
  3. Step 3: Cross multiply
    90,457.56x = 124,831.38 × 50,177.40
  4. Step 4: Simplify right side
    90,457.56x = 6,263,714,086.81
  5. Step 5: Solve for x
    x = 6,263,714,086.81/90,457.56
  6. Step 6: Final answer
    x = 69,244.78

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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.