Home / 53,427.90-80,138.06-18,366.78

Finding the Fourth Proportional to 53,427.90, 80,138.06 and 18,366.78

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Solution

The fourth proportional to 53,427.90, 80,138.06 and 18,366.78 is: 27,548.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,427.90 : 80,138.06 = 18,366.78 : x
  2. Step 2: Convert to fraction form
    53,427.90/80,138.06 = 18,366.78/x
  3. Step 3: Cross multiply
    53,427.90x = 80,138.06 × 18,366.78
  4. Step 4: Simplify right side
    53,427.90x = 1,471,878,117.65
  5. Step 5: Solve for x
    x = 1,471,878,117.65/53,427.90
  6. Step 6: Final answer
    x = 27,548.87

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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.