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Finding the Fourth Proportional to 80,280.94, 120,439.02 and 26,970.98

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Solution

The fourth proportional to 80,280.94, 120,439.02 and 26,970.98 is: 40,462.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,280.94 : 120,439.02 = 26,970.98 : x
  2. Step 2: Convert to fraction form
    80,280.94/120,439.02 = 26,970.98/x
  3. Step 3: Cross multiply
    80,280.94x = 120,439.02 × 26,970.98
  4. Step 4: Simplify right side
    80,280.94x = 3,248,358,399.64
  5. Step 5: Solve for x
    x = 3,248,358,399.64/80,280.94
  6. Step 6: Final answer
    x = 40,462.39

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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.