Home / 57,030.87-78,695.73-31,533.81

Finding the Fourth Proportional to 57,030.87, 78,695.73 and 31,533.81

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Solution

The fourth proportional to 57,030.87, 78,695.73 and 31,533.81 is: 43,512.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,030.87 : 78,695.73 = 31,533.81 : x
  2. Step 2: Convert to fraction form
    57,030.87/78,695.73 = 31,533.81/x
  3. Step 3: Cross multiply
    57,030.87x = 78,695.73 × 31,533.81
  4. Step 4: Simplify right side
    57,030.87x = 2,481,576,197.63
  5. Step 5: Solve for x
    x = 2,481,576,197.63/57,030.87
  6. Step 6: Final answer
    x = 43,512.86

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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.