Home / 56,222.31-77,586.84-31,071.81

Finding the Fourth Proportional to 56,222.31, 77,586.84 and 31,071.81

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Solution

The fourth proportional to 56,222.31, 77,586.84 and 31,071.81 is: 42,879.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,222.31 : 77,586.84 = 31,071.81 : x
  2. Step 2: Convert to fraction form
    56,222.31/77,586.84 = 31,071.81/x
  3. Step 3: Cross multiply
    56,222.31x = 77,586.84 × 31,071.81
  4. Step 4: Simplify right side
    56,222.31x = 2,410,763,550.98
  5. Step 5: Solve for x
    x = 2,410,763,550.98/56,222.31
  6. Step 6: Final answer
    x = 42,879.13

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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.