Home / 90,428.53-124,785.28-50,140.80

Finding the Fourth Proportional to 90,428.53, 124,785.28 and 50,140.80

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Solution

The fourth proportional to 90,428.53, 124,785.28 and 50,140.80 is: 69,190.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,428.53 : 124,785.28 = 50,140.80 : x
  2. Step 2: Convert to fraction form
    90,428.53/124,785.28 = 50,140.80/x
  3. Step 3: Cross multiply
    90,428.53x = 124,785.28 × 50,140.80
  4. Step 4: Simplify right side
    90,428.53x = 6,256,833,620.16
  5. Step 5: Solve for x
    x = 6,256,833,620.16/90,428.53
  6. Step 6: Final answer
    x = 69,190.93

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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.