Home / 81,841.01-112,902.46-53,158.64

Finding the Fourth Proportional to 81,841.01, 112,902.46 and 53,158.64

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Solution

The fourth proportional to 81,841.01, 112,902.46 and 53,158.64 is: 73,334.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,841.01 : 112,902.46 = 53,158.64 : x
  2. Step 2: Convert to fraction form
    81,841.01/112,902.46 = 53,158.64/x
  3. Step 3: Cross multiply
    81,841.01x = 112,902.46 × 53,158.64
  4. Step 4: Simplify right side
    81,841.01x = 6,001,740,528.85
  5. Step 5: Solve for x
    x = 6,001,740,528.85/81,841.01
  6. Step 6: Final answer
    x = 73,334.15

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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.