Home / 56,738.12-78,295.56-31,586

Finding the Fourth Proportional to 56,738.12, 78,295.56 and 31,586

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Solution

The fourth proportional to 56,738.12, 78,295.56 and 31,586 is: 43,586.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,738.12 : 78,295.56 = 31,586 : x
  2. Step 2: Convert to fraction form
    56,738.12/78,295.56 = 31,586/x
  3. Step 3: Cross multiply
    56,738.12x = 78,295.56 × 31,586
  4. Step 4: Simplify right side
    56,738.12x = 2,473,043,558.16
  5. Step 5: Solve for x
    x = 2,473,043,558.16/56,738.12
  6. Step 6: Final answer
    x = 43,586.98

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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.