Home / 56,852.15-78,452.28-31,356.99

Finding the Fourth Proportional to 56,852.15, 78,452.28 and 31,356.99

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Solution

The fourth proportional to 56,852.15, 78,452.28 and 31,356.99 is: 43,270.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,852.15 : 78,452.28 = 31,356.99 : x
  2. Step 2: Convert to fraction form
    56,852.15/78,452.28 = 31,356.99/x
  3. Step 3: Cross multiply
    56,852.15x = 78,452.28 × 31,356.99
  4. Step 4: Simplify right side
    56,852.15x = 2,460,027,359.44
  5. Step 5: Solve for x
    x = 2,460,027,359.44/56,852.15
  6. Step 6: Final answer
    x = 43,270.62

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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.