Home / 72,932.34-109,416.98-20,341.84

Finding the Fourth Proportional to 72,932.34, 109,416.98 and 20,341.84

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Solution

The fourth proportional to 72,932.34, 109,416.98 and 20,341.84 is: 30,517.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,932.34 : 109,416.98 = 20,341.84 : x
  2. Step 2: Convert to fraction form
    72,932.34/109,416.98 = 20,341.84/x
  3. Step 3: Cross multiply
    72,932.34x = 109,416.98 × 20,341.84
  4. Step 4: Simplify right side
    72,932.34x = 2,225,742,700.44
  5. Step 5: Solve for x
    x = 2,225,742,700.44/72,932.34
  6. Step 6: Final answer
    x = 30,517.91

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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.