Home / 56,436.58-77,881.29-31,285.54

Finding the Fourth Proportional to 56,436.58, 77,881.29 and 31,285.54

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Solution

The fourth proportional to 56,436.58, 77,881.29 and 31,285.54 is: 43,173.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,436.58 : 77,881.29 = 31,285.54 : x
  2. Step 2: Convert to fraction form
    56,436.58/77,881.29 = 31,285.54/x
  3. Step 3: Cross multiply
    56,436.58x = 77,881.29 × 31,285.54
  4. Step 4: Simplify right side
    56,436.58x = 2,436,558,213.55
  5. Step 5: Solve for x
    x = 2,436,558,213.55/56,436.58
  6. Step 6: Final answer
    x = 43,173.39

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1.5x scale

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.