Home / 55,399.32-76,467.42-38,637.72

Finding the Fourth Proportional to 55,399.32, 76,467.42 and 38,637.72

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Solution

The fourth proportional to 55,399.32, 76,467.42 and 38,637.72 is: 53,331.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,399.32 : 76,467.42 = 38,637.72 : x
  2. Step 2: Convert to fraction form
    55,399.32/76,467.42 = 38,637.72/x
  3. Step 3: Cross multiply
    55,399.32x = 76,467.42 × 38,637.72
  4. Step 4: Simplify right side
    55,399.32x = 2,954,526,763.08
  5. Step 5: Solve for x
    x = 2,954,526,763.08/55,399.32
  6. Step 6: Final answer
    x = 53,331.46

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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.