Home / 53,120.12-79,688.37-18,051.57

Finding the Fourth Proportional to 53,120.12, 79,688.37 and 18,051.57

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Solution

The fourth proportional to 53,120.12, 79,688.37 and 18,051.57 is: 27,080.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,120.12 : 79,688.37 = 18,051.57 : x
  2. Step 2: Convert to fraction form
    53,120.12/79,688.37 = 18,051.57/x
  3. Step 3: Cross multiply
    53,120.12x = 79,688.37 × 18,051.57
  4. Step 4: Simplify right side
    53,120.12x = 1,438,500,189.24
  5. Step 5: Solve for x
    x = 1,438,500,189.24/53,120.12
  6. Step 6: Final answer
    x = 27,080.14

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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.