Home / 56,972.35-78,623.43-31,480.35

Finding the Fourth Proportional to 56,972.35, 78,623.43 and 31,480.35

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Solution

The fourth proportional to 56,972.35, 78,623.43 and 31,480.35 is: 43,443.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,972.35 : 78,623.43 = 31,480.35 : x
  2. Step 2: Convert to fraction form
    56,972.35/78,623.43 = 31,480.35/x
  3. Step 3: Cross multiply
    56,972.35x = 78,623.43 × 31,480.35
  4. Step 4: Simplify right side
    56,972.35x = 2,475,093,094.60
  5. Step 5: Solve for x
    x = 2,475,093,094.60/56,972.35
  6. Step 6: Final answer
    x = 43,443.76

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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.