Home / 56,846.35-78,448.47-31,353.70

Finding the Fourth Proportional to 56,846.35, 78,448.47 and 31,353.70

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Solution

The fourth proportional to 56,846.35, 78,448.47 and 31,353.70 is: 43,268.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,846.35 : 78,448.47 = 31,353.70 : x
  2. Step 2: Convert to fraction form
    56,846.35/78,448.47 = 31,353.70/x
  3. Step 3: Cross multiply
    56,846.35x = 78,448.47 × 31,353.70
  4. Step 4: Simplify right side
    56,846.35x = 2,459,649,793.84
  5. Step 5: Solve for x
    x = 2,459,649,793.84/56,846.35
  6. Step 6: Final answer
    x = 43,268.39

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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.