Home / 90,996.16-136,510.44-31,021.32

Finding the Fourth Proportional to 90,996.16, 136,510.44 and 31,021.32

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Solution

The fourth proportional to 90,996.16, 136,510.44 and 31,021.32 is: 46,537.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,996.16 : 136,510.44 = 31,021.32 : x
  2. Step 2: Convert to fraction form
    90,996.16/136,510.44 = 31,021.32/x
  3. Step 3: Cross multiply
    90,996.16x = 136,510.44 × 31,021.32
  4. Step 4: Simplify right side
    90,996.16x = 4,234,734,042.58
  5. Step 5: Solve for x
    x = 4,234,734,042.58/90,996.16
  6. Step 6: Final answer
    x = 46,537.50

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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.