Home / 57,130.68-78,836.52-33,253.56

Finding the Fourth Proportional to 57,130.68, 78,836.52 and 33,253.56

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Solution

The fourth proportional to 57,130.68, 78,836.52 and 33,253.56 is: 45,887.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,130.68 : 78,836.52 = 33,253.56 : x
  2. Step 2: Convert to fraction form
    57,130.68/78,836.52 = 33,253.56/x
  3. Step 3: Cross multiply
    57,130.68x = 78,836.52 × 33,253.56
  4. Step 4: Simplify right side
    57,130.68x = 2,621,594,948.01
  5. Step 5: Solve for x
    x = 2,621,594,948.01/57,130.68
  6. Step 6: Final answer
    x = 45,887.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.