Home / 90,725.04-136,040.70-40,762.44

Finding the Fourth Proportional to 90,725.04, 136,040.70 and 40,762.44

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Solution

The fourth proportional to 90,725.04, 136,040.70 and 40,762.44 is: 61,122.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,725.04 : 136,040.70 = 40,762.44 : x
  2. Step 2: Convert to fraction form
    90,725.04/136,040.70 = 40,762.44/x
  3. Step 3: Cross multiply
    90,725.04x = 136,040.70 × 40,762.44
  4. Step 4: Simplify right side
    90,725.04x = 5,545,350,871.31
  5. Step 5: Solve for x
    x = 5,545,350,871.31/90,725.04
  6. Step 6: Final answer
    x = 61,122.61

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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.