Home / 90,641.32-135,936.06-46,240.36

Finding the Fourth Proportional to 90,641.32, 135,936.06 and 46,240.36

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Solution

The fourth proportional to 90,641.32, 135,936.06 and 46,240.36 is: 69,347.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,641.32 : 135,936.06 = 46,240.36 : x
  2. Step 2: Convert to fraction form
    90,641.32/135,936.06 = 46,240.36/x
  3. Step 3: Cross multiply
    90,641.32x = 135,936.06 × 46,240.36
  4. Step 4: Simplify right side
    90,641.32x = 6,285,732,351.38
  5. Step 5: Solve for x
    x = 6,285,732,351.38/90,641.32
  6. Step 6: Final answer
    x = 69,347.32

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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.