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Finding the Fourth Proportional to 70,106.21, 105,071.84 and 35,055.89

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Solution

The fourth proportional to 70,106.21, 105,071.84 and 35,055.89 is: 52,540.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,106.21 : 105,071.84 = 35,055.89 : x
  2. Step 2: Convert to fraction form
    70,106.21/105,071.84 = 35,055.89/x
  3. Step 3: Cross multiply
    70,106.21x = 105,071.84 × 35,055.89
  4. Step 4: Simplify right side
    70,106.21x = 3,683,386,689.86
  5. Step 5: Solve for x
    x = 3,683,386,689.86/70,106.21
  6. Step 6: Final answer
    x = 52,540.09

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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.