Home / 42,733.73-64,100.63-11,143.76

Finding the Fourth Proportional to 42,733.73, 64,100.63 and 11,143.76

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Solution

The fourth proportional to 42,733.73, 64,100.63 and 11,143.76 is: 16,715.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,733.73 : 64,100.63 = 11,143.76 : x
  2. Step 2: Convert to fraction form
    42,733.73/64,100.63 = 11,143.76/x
  3. Step 3: Cross multiply
    42,733.73x = 64,100.63 × 11,143.76
  4. Step 4: Simplify right side
    42,733.73x = 714,322,224.68
  5. Step 5: Solve for x
    x = 714,322,224.68/42,733.73
  6. Step 6: Final answer
    x = 16,715.66

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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.