Home / 55,645.65-76,794.76-31,438.21

Finding the Fourth Proportional to 55,645.65, 76,794.76 and 31,438.21

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Solution

The fourth proportional to 55,645.65, 76,794.76 and 31,438.21 is: 43,386.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,645.65 : 76,794.76 = 31,438.21 : x
  2. Step 2: Convert to fraction form
    55,645.65/76,794.76 = 31,438.21/x
  3. Step 3: Cross multiply
    55,645.65x = 76,794.76 × 31,438.21
  4. Step 4: Simplify right side
    55,645.65x = 2,414,290,018.64
  5. Step 5: Solve for x
    x = 2,414,290,018.64/55,645.65
  6. Step 6: Final answer
    x = 43,386.86

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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.