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Finding the Fourth Proportional to 70,109.79, 105,164.69 and 37,270.11

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Solution

The fourth proportional to 70,109.79, 105,164.69 and 37,270.11 is: 55,905.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,109.79 : 105,164.69 = 37,270.11 : x
  2. Step 2: Convert to fraction form
    70,109.79/105,164.69 = 37,270.11/x
  3. Step 3: Cross multiply
    70,109.79x = 105,164.69 × 37,270.11
  4. Step 4: Simplify right side
    70,109.79x = 3,919,499,378.07
  5. Step 5: Solve for x
    x = 3,919,499,378.07/70,109.79
  6. Step 6: Final answer
    x = 55,905.17

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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.