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Finding the Fourth Proportional to 74,809.63, 112,152.34 and 30,457.27

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Solution

The fourth proportional to 74,809.63, 112,152.34 and 30,457.27 is: 45,660.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,809.63 : 112,152.34 = 30,457.27 : x
  2. Step 2: Convert to fraction form
    74,809.63/112,152.34 = 30,457.27/x
  3. Step 3: Cross multiply
    74,809.63x = 112,152.34 × 30,457.27
  4. Step 4: Simplify right side
    74,809.63x = 3,415,854,100.51
  5. Step 5: Solve for x
    x = 3,415,854,100.51/74,809.63
  6. Step 6: Final answer
    x = 45,660.62

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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.