Home / 75,015.46-103,473.57-57,071.26

Finding the Fourth Proportional to 75,015.46, 103,473.57 and 57,071.26

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Solution

The fourth proportional to 75,015.46, 103,473.57 and 57,071.26 is: 78,722.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,015.46 : 103,473.57 = 57,071.26 : x
  2. Step 2: Convert to fraction form
    75,015.46/103,473.57 = 57,071.26/x
  3. Step 3: Cross multiply
    75,015.46x = 103,473.57 × 57,071.26
  4. Step 4: Simplify right side
    75,015.46x = 5,905,367,016.60
  5. Step 5: Solve for x
    x = 5,905,367,016.60/75,015.46
  6. Step 6: Final answer
    x = 78,722.00

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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.