Home / 84,430.37-126,645.53-31,827.56

Finding the Fourth Proportional to 84,430.37, 126,645.53 and 31,827.56

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Solution

The fourth proportional to 84,430.37, 126,645.53 and 31,827.56 is: 47,741.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,430.37 : 126,645.53 = 31,827.56 : x
  2. Step 2: Convert to fraction form
    84,430.37/126,645.53 = 31,827.56/x
  3. Step 3: Cross multiply
    84,430.37x = 126,645.53 × 31,827.56
  4. Step 4: Simplify right side
    84,430.37x = 4,030,817,571.58
  5. Step 5: Solve for x
    x = 4,030,817,571.58/84,430.37
  6. Step 6: Final answer
    x = 47,741.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.