Home / 51,635.20-71,271.84-30,421.32

Finding the Fourth Proportional to 51,635.20, 71,271.84 and 30,421.32

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Solution

The fourth proportional to 51,635.20, 71,271.84 and 30,421.32 is: 41,990.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,635.20 : 71,271.84 = 30,421.32 : x
  2. Step 2: Convert to fraction form
    51,635.20/71,271.84 = 30,421.32/x
  3. Step 3: Cross multiply
    51,635.20x = 71,271.84 × 30,421.32
  4. Step 4: Simplify right side
    51,635.20x = 2,168,183,451.63
  5. Step 5: Solve for x
    x = 2,168,183,451.63/51,635.20
  6. Step 6: Final answer
    x = 41,990.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.