Home / 85,121.98-127,678.17-37,723.42

Finding the Fourth Proportional to 85,121.98, 127,678.17 and 37,723.42

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Solution

The fourth proportional to 85,121.98, 127,678.17 and 37,723.42 is: 56,583.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,121.98 : 127,678.17 = 37,723.42 : x
  2. Step 2: Convert to fraction form
    85,121.98/127,678.17 = 37,723.42/x
  3. Step 3: Cross multiply
    85,121.98x = 127,678.17 × 37,723.42
  4. Step 4: Simplify right side
    85,121.98x = 4,816,457,231.74
  5. Step 5: Solve for x
    x = 4,816,457,231.74/85,121.98
  6. Step 6: Final answer
    x = 56,583.00

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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.