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Finding the Fourth Proportional to 56,753.94, 78,323.97 and 31,260.30

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Solution

The fourth proportional to 56,753.94, 78,323.97 and 31,260.30 is: 43,141.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,753.94 : 78,323.97 = 31,260.30 : x
  2. Step 2: Convert to fraction form
    56,753.94/78,323.97 = 31,260.30/x
  3. Step 3: Cross multiply
    56,753.94x = 78,323.97 × 31,260.30
  4. Step 4: Simplify right side
    56,753.94x = 2,448,430,799.39
  5. Step 5: Solve for x
    x = 2,448,430,799.39/56,753.94
  6. Step 6: Final answer
    x = 43,141.16

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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.