Home / 80,870.46-111,598.05-45,059.55

Finding the Fourth Proportional to 80,870.46, 111,598.05 and 45,059.55

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Solution

The fourth proportional to 80,870.46, 111,598.05 and 45,059.55 is: 62,180.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,870.46 : 111,598.05 = 45,059.55 : x
  2. Step 2: Convert to fraction form
    80,870.46/111,598.05 = 45,059.55/x
  3. Step 3: Cross multiply
    80,870.46x = 111,598.05 × 45,059.55
  4. Step 4: Simplify right side
    80,870.46x = 5,028,557,913.88
  5. Step 5: Solve for x
    x = 5,028,557,913.88/80,870.46
  6. Step 6: Final answer
    x = 62,180.40

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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.