Home / 90,376.08-135,544.86-57,051.60

Finding the Fourth Proportional to 90,376.08, 135,544.86 and 57,051.60

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Solution

The fourth proportional to 90,376.08, 135,544.86 and 57,051.60 is: 85,565.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,376.08 : 135,544.86 = 57,051.60 : x
  2. Step 2: Convert to fraction form
    90,376.08/135,544.86 = 57,051.60/x
  3. Step 3: Cross multiply
    90,376.08x = 135,544.86 × 57,051.60
  4. Step 4: Simplify right side
    90,376.08x = 7,733,051,134.78
  5. Step 5: Solve for x
    x = 7,733,051,134.78/90,376.08
  6. Step 6: Final answer
    x = 85,565.24

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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.