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Finding the Fourth Proportional to 70,457.58, 105,684.83 and 17,149.79

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Solution

The fourth proportional to 70,457.58, 105,684.83 and 17,149.79 is: 25,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,457.58 : 105,684.83 = 17,149.79 : x
  2. Step 2: Convert to fraction form
    70,457.58/105,684.83 = 17,149.79/x
  3. Step 3: Cross multiply
    70,457.58x = 105,684.83 × 17,149.79
  4. Step 4: Simplify right side
    70,457.58x = 1,812,472,026.51
  5. Step 5: Solve for x
    x = 1,812,472,026.51/70,457.58
  6. Step 6: Final answer
    x = 25,724.30

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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.