Home / 56,904.87-78,533.19-31,416.30

Finding the Fourth Proportional to 56,904.87, 78,533.19 and 31,416.30

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Solution

The fourth proportional to 56,904.87, 78,533.19 and 31,416.30 is: 43,356.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,904.87 : 78,533.19 = 31,416.30 : x
  2. Step 2: Convert to fraction form
    56,904.87/78,533.19 = 31,416.30/x
  3. Step 3: Cross multiply
    56,904.87x = 78,533.19 × 31,416.30
  4. Step 4: Simplify right side
    56,904.87x = 2,467,222,257.00
  5. Step 5: Solve for x
    x = 2,467,222,257.00/56,904.87
  6. Step 6: Final answer
    x = 43,356.96

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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.