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Finding the Fourth Proportional to 70,457.79, 105,619.84 and 26,054.40

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Solution

The fourth proportional to 70,457.79, 105,619.84 and 26,054.40 is: 39,056.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,457.79 : 105,619.84 = 26,054.40 : x
  2. Step 2: Convert to fraction form
    70,457.79/105,619.84 = 26,054.40/x
  3. Step 3: Cross multiply
    70,457.79x = 105,619.84 × 26,054.40
  4. Step 4: Simplify right side
    70,457.79x = 2,751,861,559.30
  5. Step 5: Solve for x
    x = 2,751,861,559.30/70,457.79
  6. Step 6: Final answer
    x = 39,056.88

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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.