Home / 77,731.86-116,608.73-38,289.32

Finding the Fourth Proportional to 77,731.86, 116,608.73 and 38,289.32

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Solution

The fourth proportional to 77,731.86, 116,608.73 and 38,289.32 is: 57,439.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,731.86 : 116,608.73 = 38,289.32 : x
  2. Step 2: Convert to fraction form
    77,731.86/116,608.73 = 38,289.32/x
  3. Step 3: Cross multiply
    77,731.86x = 116,608.73 × 38,289.32
  4. Step 4: Simplify right side
    77,731.86x = 4,464,868,203.27
  5. Step 5: Solve for x
    x = 4,464,868,203.27/77,731.86
  6. Step 6: Final answer
    x = 57,439.36

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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.