Home / 43,117.92-64,667.16-11,955.60

Finding the Fourth Proportional to 43,117.92, 64,667.16 and 11,955.60

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Solution

The fourth proportional to 43,117.92, 64,667.16 and 11,955.60 is: 17,930.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,117.92 : 64,667.16 = 11,955.60 : x
  2. Step 2: Convert to fraction form
    43,117.92/64,667.16 = 11,955.60/x
  3. Step 3: Cross multiply
    43,117.92x = 64,667.16 × 11,955.60
  4. Step 4: Simplify right side
    43,117.92x = 773,134,698.10
  5. Step 5: Solve for x
    x = 773,134,698.10/43,117.92
  6. Step 6: Final answer
    x = 17,930.70

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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.