Home / 79,298.04-109,432.80-43,485.90

Finding the Fourth Proportional to 79,298.04, 109,432.80 and 43,485.90

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Solution

The fourth proportional to 79,298.04, 109,432.80 and 43,485.90 is: 60,011.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,298.04 : 109,432.80 = 43,485.90 : x
  2. Step 2: Convert to fraction form
    79,298.04/109,432.80 = 43,485.90/x
  3. Step 3: Cross multiply
    79,298.04x = 109,432.80 × 43,485.90
  4. Step 4: Simplify right side
    79,298.04x = 4,758,783,797.52
  5. Step 5: Solve for x
    x = 4,758,783,797.52/79,298.04
  6. Step 6: Final answer
    x = 60,011.37

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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.