Home / 105,338.63-145,368.73-57,591.86

Finding the Fourth Proportional to 105,338.63, 145,368.73 and 57,591.86

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Solution

The fourth proportional to 105,338.63, 145,368.73 and 57,591.86 is: 79,477.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,338.63 : 145,368.73 = 57,591.86 : x
  2. Step 2: Convert to fraction form
    105,338.63/145,368.73 = 57,591.86/x
  3. Step 3: Cross multiply
    105,338.63x = 145,368.73 × 57,591.86
  4. Step 4: Simplify right side
    105,338.63x = 8,372,055,546.54
  5. Step 5: Solve for x
    x = 8,372,055,546.54/105,338.63
  6. Step 6: Final answer
    x = 79,477.54

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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.