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Finding the Fourth Proportional to 70,087.69, 105,069.01 and 25,704.07

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Solution

The fourth proportional to 70,087.69, 105,069.01 and 25,704.07 is: 38,533.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,087.69 : 105,069.01 = 25,704.07 : x
  2. Step 2: Convert to fraction form
    70,087.69/105,069.01 = 25,704.07/x
  3. Step 3: Cross multiply
    70,087.69x = 105,069.01 × 25,704.07
  4. Step 4: Simplify right side
    70,087.69x = 2,700,701,187.87
  5. Step 5: Solve for x
    x = 2,700,701,187.87/70,087.69
  6. Step 6: Final answer
    x = 38,533.17

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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.