Home / 55,391.54-76,442.01-31,521.65

Finding the Fourth Proportional to 55,391.54, 76,442.01 and 31,521.65

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Solution

The fourth proportional to 55,391.54, 76,442.01 and 31,521.65 is: 43,500.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,391.54 : 76,442.01 = 31,521.65 : x
  2. Step 2: Convert to fraction form
    55,391.54/76,442.01 = 31,521.65/x
  3. Step 3: Cross multiply
    55,391.54x = 76,442.01 × 31,521.65
  4. Step 4: Simplify right side
    55,391.54x = 2,409,578,284.52
  5. Step 5: Solve for x
    x = 2,409,578,284.52/55,391.54
  6. Step 6: Final answer
    x = 43,500.84

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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.