Home / 90,785.10-125,232.28-54,477.16

Finding the Fourth Proportional to 90,785.10, 125,232.28 and 54,477.16

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Solution

The fourth proportional to 90,785.10, 125,232.28 and 54,477.16 is: 75,147.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,785.10 : 125,232.28 = 54,477.16 : x
  2. Step 2: Convert to fraction form
    90,785.10/125,232.28 = 54,477.16/x
  3. Step 3: Cross multiply
    90,785.10x = 125,232.28 × 54,477.16
  4. Step 4: Simplify right side
    90,785.10x = 6,822,298,505.45
  5. Step 5: Solve for x
    x = 6,822,298,505.45/90,785.10
  6. Step 6: Final answer
    x = 75,147.77

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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.