Home / 55,392.32-76,361.44-39,470.72

Finding the Fourth Proportional to 55,392.32, 76,361.44 and 39,470.72

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Solution

The fourth proportional to 55,392.32, 76,361.44 and 39,470.72 is: 54,412.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,392.32 : 76,361.44 = 39,470.72 : x
  2. Step 2: Convert to fraction form
    55,392.32/76,361.44 = 39,470.72/x
  3. Step 3: Cross multiply
    55,392.32x = 76,361.44 × 39,470.72
  4. Step 4: Simplify right side
    55,392.32x = 3,014,041,017.04
  5. Step 5: Solve for x
    x = 3,014,041,017.04/55,392.32
  6. Step 6: Final answer
    x = 54,412.62

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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.