Home / 70,146.81-105,247.35-25,804.17

Finding the Fourth Proportional to 70,146.81, 105,247.35 and 25,804.17

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Solution

The fourth proportional to 70,146.81, 105,247.35 and 25,804.17 is: 38,716.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,146.81 : 105,247.35 = 25,804.17 : x
  2. Step 2: Convert to fraction form
    70,146.81/105,247.35 = 25,804.17/x
  3. Step 3: Cross multiply
    70,146.81x = 105,247.35 × 25,804.17
  4. Step 4: Simplify right side
    70,146.81x = 2,715,820,511.45
  5. Step 5: Solve for x
    x = 2,715,820,511.45/70,146.81
  6. Step 6: Final answer
    x = 38,716.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.