Home / 80,814.31-111,533.93-48,979.15

Finding the Fourth Proportional to 80,814.31, 111,533.93 and 48,979.15

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Solution

The fourth proportional to 80,814.31, 111,533.93 and 48,979.15 is: 67,597.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,814.31 : 111,533.93 = 48,979.15 : x
  2. Step 2: Convert to fraction form
    80,814.31/111,533.93 = 48,979.15/x
  3. Step 3: Cross multiply
    80,814.31x = 111,533.93 × 48,979.15
  4. Step 4: Simplify right side
    80,814.31x = 5,462,836,747.50
  5. Step 5: Solve for x
    x = 5,462,836,747.50/80,814.31
  6. Step 6: Final answer
    x = 67,597.40

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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.