Home / 80,539.27-111,385.04-70,450.19

Finding the Fourth Proportional to 80,539.27, 111,385.04 and 70,450.19

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Solution

The fourth proportional to 80,539.27, 111,385.04 and 70,450.19 is: 97,431.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,539.27 : 111,385.04 = 70,450.19 : x
  2. Step 2: Convert to fraction form
    80,539.27/111,385.04 = 70,450.19/x
  3. Step 3: Cross multiply
    80,539.27x = 111,385.04 × 70,450.19
  4. Step 4: Simplify right side
    80,539.27x = 7,847,097,366.22
  5. Step 5: Solve for x
    x = 7,847,097,366.22/80,539.27
  6. Step 6: Final answer
    x = 97,431.94

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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.