Home / 56,848.50-78,453.36-31,698

Finding the Fourth Proportional to 56,848.50, 78,453.36 and 31,698

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Solution

The fourth proportional to 56,848.50, 78,453.36 and 31,698 is: 43,744.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,848.50 : 78,453.36 = 31,698 : x
  2. Step 2: Convert to fraction form
    56,848.50/78,453.36 = 31,698/x
  3. Step 3: Cross multiply
    56,848.50x = 78,453.36 × 31,698
  4. Step 4: Simplify right side
    56,848.50x = 2,486,814,605.28
  5. Step 5: Solve for x
    x = 2,486,814,605.28/56,848.50
  6. Step 6: Final answer
    x = 43,744.59

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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.