Home / 56,440.35-77,886.54-31,289.85

Finding the Fourth Proportional to 56,440.35, 77,886.54 and 31,289.85

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Solution

The fourth proportional to 56,440.35, 77,886.54 and 31,289.85 is: 43,179.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,440.35 : 77,886.54 = 31,289.85 : x
  2. Step 2: Convert to fraction form
    56,440.35/77,886.54 = 31,289.85/x
  3. Step 3: Cross multiply
    56,440.35x = 77,886.54 × 31,289.85
  4. Step 4: Simplify right side
    56,440.35x = 2,437,058,153.62
  5. Step 5: Solve for x
    x = 2,437,058,153.62/56,440.35
  6. Step 6: Final answer
    x = 43,179.36

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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.