Home / 82,011.04-122,938.80-40,409.44

Finding the Fourth Proportional to 82,011.04, 122,938.80 and 40,409.44

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Solution

The fourth proportional to 82,011.04, 122,938.80 and 40,409.44 is: 60,575.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,011.04 : 122,938.80 = 40,409.44 : x
  2. Step 2: Convert to fraction form
    82,011.04/122,938.80 = 40,409.44/x
  3. Step 3: Cross multiply
    82,011.04x = 122,938.80 × 40,409.44
  4. Step 4: Simplify right side
    82,011.04x = 4,967,888,062.27
  5. Step 5: Solve for x
    x = 4,967,888,062.27/82,011.04
  6. Step 6: Final answer
    x = 60,575.85

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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.