Home / 76,647.74-114,985.51-31,669.18

Finding the Fourth Proportional to 76,647.74, 114,985.51 and 31,669.18

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Solution

The fourth proportional to 76,647.74, 114,985.51 and 31,669.18 is: 47,509.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,647.74 : 114,985.51 = 31,669.18 : x
  2. Step 2: Convert to fraction form
    76,647.74/114,985.51 = 31,669.18/x
  3. Step 3: Cross multiply
    76,647.74x = 114,985.51 × 31,669.18
  4. Step 4: Simplify right side
    76,647.74x = 3,641,496,446.95
  5. Step 5: Solve for x
    x = 3,641,496,446.95/76,647.74
  6. Step 6: Final answer
    x = 47,509.51

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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.