Home / 55,409.16-76,445.67-31,529.86

Finding the Fourth Proportional to 55,409.16, 76,445.67 and 31,529.86

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Solution

The fourth proportional to 55,409.16, 76,445.67 and 31,529.86 is: 43,500.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,409.16 : 76,445.67 = 31,529.86 : x
  2. Step 2: Convert to fraction form
    55,409.16/76,445.67 = 31,529.86/x
  3. Step 3: Cross multiply
    55,409.16x = 76,445.67 × 31,529.86
  4. Step 4: Simplify right side
    55,409.16x = 2,410,321,199.83
  5. Step 5: Solve for x
    x = 2,410,321,199.83/55,409.16
  6. Step 6: Final answer
    x = 43,500.41

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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.