Home / 76,072.98-114,119.85-31,689.35

Finding the Fourth Proportional to 76,072.98, 114,119.85 and 31,689.35

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Solution

The fourth proportional to 76,072.98, 114,119.85 and 31,689.35 is: 47,538.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,072.98 : 114,119.85 = 31,689.35 : x
  2. Step 2: Convert to fraction form
    76,072.98/114,119.85 = 31,689.35/x
  3. Step 3: Cross multiply
    76,072.98x = 114,119.85 × 31,689.35
  4. Step 4: Simplify right side
    76,072.98x = 3,616,384,032.06
  5. Step 5: Solve for x
    x = 3,616,384,032.06/76,072.98
  6. Step 6: Final answer
    x = 47,538.35

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1.5x scale

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.