Home / 56,679.93-78,223.41-31,191.26

Finding the Fourth Proportional to 56,679.93, 78,223.41 and 31,191.26

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Solution

The fourth proportional to 56,679.93, 78,223.41 and 31,191.26 is: 43,046.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,679.93 : 78,223.41 = 31,191.26 : x
  2. Step 2: Convert to fraction form
    56,679.93/78,223.41 = 31,191.26/x
  3. Step 3: Cross multiply
    56,679.93x = 78,223.41 × 31,191.26
  4. Step 4: Simplify right side
    56,679.93x = 2,439,886,328.28
  5. Step 5: Solve for x
    x = 2,439,886,328.28/56,679.93
  6. Step 6: Final answer
    x = 43,046.74

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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.