Home / 80,730.96-111,409.08-48,877.20

Finding the Fourth Proportional to 80,730.96, 111,409.08 and 48,877.20

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Solution

The fourth proportional to 80,730.96, 111,409.08 and 48,877.20 is: 67,450.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,730.96 : 111,409.08 = 48,877.20 : x
  2. Step 2: Convert to fraction form
    80,730.96/111,409.08 = 48,877.20/x
  3. Step 3: Cross multiply
    80,730.96x = 111,409.08 × 48,877.20
  4. Step 4: Simplify right side
    80,730.96x = 5,445,363,884.98
  5. Step 5: Solve for x
    x = 5,445,363,884.98/80,730.96
  6. Step 6: Final answer
    x = 67,450.75

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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.