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Finding the Fourth Proportional to 70,804.80, 106,207.47 and 28,685.68

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Solution

The fourth proportional to 70,804.80, 106,207.47 and 28,685.68 is: 43,028.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,804.80 : 106,207.47 = 28,685.68 : x
  2. Step 2: Convert to fraction form
    70,804.80/106,207.47 = 28,685.68/x
  3. Step 3: Cross multiply
    70,804.80x = 106,207.47 × 28,685.68
  4. Step 4: Simplify right side
    70,804.80x = 3,046,633,232.51
  5. Step 5: Solve for x
    x = 3,046,633,232.51/70,804.80
  6. Step 6: Final answer
    x = 43,028.63

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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.