Home / 76,347.21-114,565.47-31,970.25

Finding the Fourth Proportional to 76,347.21, 114,565.47 and 31,970.25

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Solution

The fourth proportional to 76,347.21, 114,565.47 and 31,970.25 is: 47,974.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,347.21 : 114,565.47 = 31,970.25 : x
  2. Step 2: Convert to fraction form
    76,347.21/114,565.47 = 31,970.25/x
  3. Step 3: Cross multiply
    76,347.21x = 114,565.47 × 31,970.25
  4. Step 4: Simplify right side
    76,347.21x = 3,662,687,003.68
  5. Step 5: Solve for x
    x = 3,662,687,003.68/76,347.21
  6. Step 6: Final answer
    x = 47,974.08

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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.