Home / 42,905.79-64,351.77-11,733.75

Finding the Fourth Proportional to 42,905.79, 64,351.77 and 11,733.75

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Solution

The fourth proportional to 42,905.79, 64,351.77 and 11,733.75 is: 17,598.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,905.79 : 64,351.77 = 11,733.75 : x
  2. Step 2: Convert to fraction form
    42,905.79/64,351.77 = 11,733.75/x
  3. Step 3: Cross multiply
    42,905.79x = 64,351.77 × 11,733.75
  4. Step 4: Simplify right side
    42,905.79x = 755,087,581.24
  5. Step 5: Solve for x
    x = 755,087,581.24/42,905.79
  6. Step 6: Final answer
    x = 17,598.73

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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.