Home / 53,605.18-80,319.15-18,525.34

Finding the Fourth Proportional to 53,605.18, 80,319.15 and 18,525.34

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Solution

The fourth proportional to 53,605.18, 80,319.15 and 18,525.34 is: 27,757.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,605.18 : 80,319.15 = 18,525.34 : x
  2. Step 2: Convert to fraction form
    53,605.18/80,319.15 = 18,525.34/x
  3. Step 3: Cross multiply
    53,605.18x = 80,319.15 × 18,525.34
  4. Step 4: Simplify right side
    53,605.18x = 1,487,939,562.26
  5. Step 5: Solve for x
    x = 1,487,939,562.26/53,605.18
  6. Step 6: Final answer
    x = 27,757.38

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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.