Home / 76,148.88-114,263.28-31,203.60

Finding the Fourth Proportional to 76,148.88, 114,263.28 and 31,203.60

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Solution

The fourth proportional to 76,148.88, 114,263.28 and 31,203.60 is: 46,821.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,148.88 : 114,263.28 = 31,203.60 : x
  2. Step 2: Convert to fraction form
    76,148.88/114,263.28 = 31,203.60/x
  3. Step 3: Cross multiply
    76,148.88x = 114,263.28 × 31,203.60
  4. Step 4: Simplify right side
    76,148.88x = 3,565,424,956.47
  5. Step 5: Solve for x
    x = 3,565,424,956.47/76,148.88
  6. Step 6: Final answer
    x = 46,821.77

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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.