Home / 53,751.40-80,651.10-18,716.20

Finding the Fourth Proportional to 53,751.40, 80,651.10 and 18,716.20

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Solution

The fourth proportional to 53,751.40, 80,651.10 and 18,716.20 is: 28,082.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,751.40 : 80,651.10 = 18,716.20 : x
  2. Step 2: Convert to fraction form
    53,751.40/80,651.10 = 18,716.20/x
  3. Step 3: Cross multiply
    53,751.40x = 80,651.10 × 18,716.20
  4. Step 4: Simplify right side
    53,751.40x = 1,509,482,117.82
  5. Step 5: Solve for x
    x = 1,509,482,117.82/53,751.40
  6. Step 6: Final answer
    x = 28,082.66

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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.