Home / 53,439.41-80,170.05-18,374.51

Finding the Fourth Proportional to 53,439.41, 80,170.05 and 18,374.51

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Solution

The fourth proportional to 53,439.41, 80,170.05 and 18,374.51 is: 27,565.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,439.41 : 80,170.05 = 18,374.51 : x
  2. Step 2: Convert to fraction form
    53,439.41/80,170.05 = 18,374.51/x
  3. Step 3: Cross multiply
    53,439.41x = 80,170.05 × 18,374.51
  4. Step 4: Simplify right side
    53,439.41x = 1,473,085,385.43
  5. Step 5: Solve for x
    x = 1,473,085,385.43/53,439.41
  6. Step 6: Final answer
    x = 27,565.52

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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.