Home / 56,736.81-78,295.27-31,586.31

Finding the Fourth Proportional to 56,736.81, 78,295.27 and 31,586.31

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Solution

The fourth proportional to 56,736.81, 78,295.27 and 31,586.31 is: 43,588.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,736.81 : 78,295.27 = 31,586.31 : x
  2. Step 2: Convert to fraction form
    56,736.81/78,295.27 = 31,586.31/x
  3. Step 3: Cross multiply
    56,736.81x = 78,295.27 × 31,586.31
  4. Step 4: Simplify right side
    56,736.81x = 2,473,058,669.75
  5. Step 5: Solve for x
    x = 2,473,058,669.75/56,736.81
  6. Step 6: Final answer
    x = 43,588.26

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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.