Home / 66,261.36-99,427.68-51,499.92

Finding the Fourth Proportional to 66,261.36, 99,427.68 and 51,499.92

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Solution

The fourth proportional to 66,261.36, 99,427.68 and 51,499.92 is: 77,277.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,261.36 : 99,427.68 = 51,499.92 : x
  2. Step 2: Convert to fraction form
    66,261.36/99,427.68 = 51,499.92/x
  3. Step 3: Cross multiply
    66,261.36x = 99,427.68 × 51,499.92
  4. Step 4: Simplify right side
    66,261.36x = 5,120,517,565.79
  5. Step 5: Solve for x
    x = 5,120,517,565.79/66,261.36
  6. Step 6: Final answer
    x = 77,277.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.