Home / 105,321.37-145,346.66-57,577.27

Finding the Fourth Proportional to 105,321.37, 145,346.66 and 57,577.27

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Solution

The fourth proportional to 105,321.37, 145,346.66 and 57,577.27 is: 79,458.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,321.37 : 145,346.66 = 57,577.27 : x
  2. Step 2: Convert to fraction form
    105,321.37/145,346.66 = 57,577.27/x
  3. Step 3: Cross multiply
    105,321.37x = 145,346.66 × 57,577.27
  4. Step 4: Simplify right side
    105,321.37x = 8,368,663,886.42
  5. Step 5: Solve for x
    x = 8,368,663,886.42/105,321.37
  6. Step 6: Final answer
    x = 79,458.37

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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.