Home / 83,804.32-125,667.12-31,212.64

Finding the Fourth Proportional to 83,804.32, 125,667.12 and 31,212.64

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Solution

The fourth proportional to 83,804.32, 125,667.12 and 31,212.64 is: 46,804.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,804.32 : 125,667.12 = 31,212.64 : x
  2. Step 2: Convert to fraction form
    83,804.32/125,667.12 = 31,212.64/x
  3. Step 3: Cross multiply
    83,804.32x = 125,667.12 × 31,212.64
  4. Step 4: Simplify right side
    83,804.32x = 3,922,402,576.40
  5. Step 5: Solve for x
    x = 3,922,402,576.40/83,804.32
  6. Step 6: Final answer
    x = 46,804.30

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1.5x scale

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.