Home / 56,983.35-78,636.75-31,491.51

Finding the Fourth Proportional to 56,983.35, 78,636.75 and 31,491.51

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Solution

The fourth proportional to 56,983.35, 78,636.75 and 31,491.51 is: 43,458.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,983.35 : 78,636.75 = 31,491.51 : x
  2. Step 2: Convert to fraction form
    56,983.35/78,636.75 = 31,491.51/x
  3. Step 3: Cross multiply
    56,983.35x = 78,636.75 × 31,491.51
  4. Step 4: Simplify right side
    56,983.35x = 2,476,389,998.99
  5. Step 5: Solve for x
    x = 2,476,389,998.99/56,983.35
  6. Step 6: Final answer
    x = 43,458.13

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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.