Home / 90,845.63-125,338.75-51,548.16

Finding the Fourth Proportional to 90,845.63, 125,338.75 and 51,548.16

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Solution

The fourth proportional to 90,845.63, 125,338.75 and 51,548.16 is: 71,120.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,845.63 : 125,338.75 = 51,548.16 : x
  2. Step 2: Convert to fraction form
    90,845.63/125,338.75 = 51,548.16/x
  3. Step 3: Cross multiply
    90,845.63x = 125,338.75 × 51,548.16
  4. Step 4: Simplify right side
    90,845.63x = 6,460,981,624.72
  5. Step 5: Solve for x
    x = 6,460,981,624.72/90,845.63
  6. Step 6: Final answer
    x = 71,120.45

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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.