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Finding the Fourth Proportional to 56,999.49, 78,659.10 and 31,848.99

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Solution

The fourth proportional to 56,999.49, 78,659.10 and 31,848.99 is: 43,951.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,999.49 : 78,659.10 = 31,848.99 : x
  2. Step 2: Convert to fraction form
    56,999.49/78,659.10 = 31,848.99/x
  3. Step 3: Cross multiply
    56,999.49x = 78,659.10 × 31,848.99
  4. Step 4: Simplify right side
    56,999.49x = 2,505,212,889.31
  5. Step 5: Solve for x
    x = 2,505,212,889.31/56,999.49
  6. Step 6: Final answer
    x = 43,951.50

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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.