Home / 93,150.36-128,546.84-50,708.78

Finding the Fourth Proportional to 93,150.36, 128,546.84 and 50,708.78

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Solution

The fourth proportional to 93,150.36, 128,546.84 and 50,708.78 is: 69,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,150.36 : 128,546.84 = 50,708.78 : x
  2. Step 2: Convert to fraction form
    93,150.36/128,546.84 = 50,708.78/x
  3. Step 3: Cross multiply
    93,150.36x = 128,546.84 × 50,708.78
  4. Step 4: Simplify right side
    93,150.36x = 6,518,453,429.26
  5. Step 5: Solve for x
    x = 6,518,453,429.26/93,150.36
  6. Step 6: Final answer
    x = 69,977.76

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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.