Home / 55,731.65-76,909.67-31,858.86

Finding the Fourth Proportional to 55,731.65, 76,909.67 and 31,858.86

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Solution

The fourth proportional to 55,731.65, 76,909.67 and 31,858.86 is: 43,965.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,731.65 : 76,909.67 = 31,858.86 : x
  2. Step 2: Convert to fraction form
    55,731.65/76,909.67 = 31,858.86/x
  3. Step 3: Cross multiply
    55,731.65x = 76,909.67 × 31,858.86
  4. Step 4: Simplify right side
    55,731.65x = 2,450,254,409.18
  5. Step 5: Solve for x
    x = 2,450,254,409.18/55,731.65
  6. Step 6: Final answer
    x = 43,965.22

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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.