Home / 56,647.14-78,171.51-31,153.52

Finding the Fourth Proportional to 56,647.14, 78,171.51 and 31,153.52

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Solution

The fourth proportional to 56,647.14, 78,171.51 and 31,153.52 is: 42,991.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,647.14 : 78,171.51 = 31,153.52 : x
  2. Step 2: Convert to fraction form
    56,647.14/78,171.51 = 31,153.52/x
  3. Step 3: Cross multiply
    56,647.14x = 78,171.51 × 31,153.52
  4. Step 4: Simplify right side
    56,647.14x = 2,435,317,309.36
  5. Step 5: Solve for x
    x = 2,435,317,309.36/56,647.14
  6. Step 6: Final answer
    x = 42,991.00

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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.