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Finding the Fourth Proportional to 70,706.88, 106,088.40 and 29,144.16

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Solution

The fourth proportional to 70,706.88, 106,088.40 and 29,144.16 is: 43,727.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,706.88 : 106,088.40 = 29,144.16 : x
  2. Step 2: Convert to fraction form
    70,706.88/106,088.40 = 29,144.16/x
  3. Step 3: Cross multiply
    70,706.88x = 106,088.40 × 29,144.16
  4. Step 4: Simplify right side
    70,706.88x = 3,091,857,303.74
  5. Step 5: Solve for x
    x = 3,091,857,303.74/70,706.88
  6. Step 6: Final answer
    x = 43,727.81

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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.