Home / 53,585.18-80,289.21-18,505.34

Finding the Fourth Proportional to 53,585.18, 80,289.21 and 18,505.34

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Solution

The fourth proportional to 53,585.18, 80,289.21 and 18,505.34 is: 27,727.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,585.18 : 80,289.21 = 18,505.34 : x
  2. Step 2: Convert to fraction form
    53,585.18/80,289.21 = 18,505.34/x
  3. Step 3: Cross multiply
    53,585.18x = 80,289.21 × 18,505.34
  4. Step 4: Simplify right side
    53,585.18x = 1,485,779,129.38
  5. Step 5: Solve for x
    x = 1,485,779,129.38/53,585.18
  6. Step 6: Final answer
    x = 27,727.43

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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.