Home / 76,015.08-114,055.40-40,947.72

Finding the Fourth Proportional to 76,015.08, 114,055.40 and 40,947.72

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Solution

The fourth proportional to 76,015.08, 114,055.40 and 40,947.72 is: 61,439.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,015.08 : 114,055.40 = 40,947.72 : x
  2. Step 2: Convert to fraction form
    76,015.08/114,055.40 = 40,947.72/x
  3. Step 3: Cross multiply
    76,015.08x = 114,055.40 × 40,947.72
  4. Step 4: Simplify right side
    76,015.08x = 4,670,308,583.69
  5. Step 5: Solve for x
    x = 4,670,308,583.69/76,015.08
  6. Step 6: Final answer
    x = 61,439.24

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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.