Home / 49,582.17-68,430.87-31,689.09

Finding the Fourth Proportional to 49,582.17, 68,430.87 and 31,689.09

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Solution

The fourth proportional to 49,582.17, 68,430.87 and 31,689.09 is: 43,735.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,582.17 : 68,430.87 = 31,689.09 : x
  2. Step 2: Convert to fraction form
    49,582.17/68,430.87 = 31,689.09/x
  3. Step 3: Cross multiply
    49,582.17x = 68,430.87 × 31,689.09
  4. Step 4: Simplify right side
    49,582.17x = 2,168,511,998.21
  5. Step 5: Solve for x
    x = 2,168,511,998.21/49,582.17
  6. Step 6: Final answer
    x = 43,735.72

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1.5x scale

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.