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Finding the Fourth Proportional to 70,130.81, 105,261.83 and 34,632.21

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Solution

The fourth proportional to 70,130.81, 105,261.83 and 34,632.21 is: 51,980.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,130.81 : 105,261.83 = 34,632.21 : x
  2. Step 2: Convert to fraction form
    70,130.81/105,261.83 = 34,632.21/x
  3. Step 3: Cross multiply
    70,130.81x = 105,261.83 × 34,632.21
  4. Step 4: Simplify right side
    70,130.81x = 3,645,449,628.38
  5. Step 5: Solve for x
    x = 3,645,449,628.38/70,130.81
  6. Step 6: Final answer
    x = 51,980.71

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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.