Home / 49,119.21-73,678.88-21,036.98

Finding the Fourth Proportional to 49,119.21, 73,678.88 and 21,036.98

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Solution

The fourth proportional to 49,119.21, 73,678.88 and 21,036.98 is: 31,555.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,119.21 : 73,678.88 = 21,036.98 : x
  2. Step 2: Convert to fraction form
    49,119.21/73,678.88 = 21,036.98/x
  3. Step 3: Cross multiply
    49,119.21x = 73,678.88 × 21,036.98
  4. Step 4: Simplify right side
    49,119.21x = 1,549,980,695.78
  5. Step 5: Solve for x
    x = 1,549,980,695.78/49,119.21
  6. Step 6: Final answer
    x = 31,555.49

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Similar ratio
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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.