Home / 77,022.40-115,277.60-55,902.40

Finding the Fourth Proportional to 77,022.40, 115,277.60 and 55,902.40

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Solution

The fourth proportional to 77,022.40, 115,277.60 and 55,902.40 is: 83,667.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,022.40 : 115,277.60 = 55,902.40 : x
  2. Step 2: Convert to fraction form
    77,022.40/115,277.60 = 55,902.40/x
  3. Step 3: Cross multiply
    77,022.40x = 115,277.60 × 55,902.40
  4. Step 4: Simplify right side
    77,022.40x = 6,444,294,506.24
  5. Step 5: Solve for x
    x = 6,444,294,506.24/77,022.40
  6. Step 6: Final answer
    x = 83,667.80

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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.