Home / 90,297.77-135,455.56-31,125.65

Finding the Fourth Proportional to 90,297.77, 135,455.56 and 31,125.65

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Solution

The fourth proportional to 90,297.77, 135,455.56 and 31,125.65 is: 46,691.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,297.77 : 135,455.56 = 31,125.65 : x
  2. Step 2: Convert to fraction form
    90,297.77/135,455.56 = 31,125.65/x
  3. Step 3: Cross multiply
    90,297.77x = 135,455.56 × 31,125.65
  4. Step 4: Simplify right side
    90,297.77x = 4,216,141,596.02
  5. Step 5: Solve for x
    x = 4,216,141,596.02/90,297.77
  6. Step 6: Final answer
    x = 46,691.54

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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.