Home / 58,537.80-80,782.17-31,680.50

Finding the Fourth Proportional to 58,537.80, 80,782.17 and 31,680.50

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Solution

The fourth proportional to 58,537.80, 80,782.17 and 31,680.50 is: 43,719.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,537.80 : 80,782.17 = 31,680.50 : x
  2. Step 2: Convert to fraction form
    58,537.80/80,782.17 = 31,680.50/x
  3. Step 3: Cross multiply
    58,537.80x = 80,782.17 × 31,680.50
  4. Step 4: Simplify right side
    58,537.80x = 2,559,219,378.28
  5. Step 5: Solve for x
    x = 2,559,219,378.28/58,537.80
  6. Step 6: Final answer
    x = 43,719.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.