Home / 76,400.35-105,476.39-50,899.93

Finding the Fourth Proportional to 76,400.35, 105,476.39 and 50,899.93

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Solution

The fourth proportional to 76,400.35, 105,476.39 and 50,899.93 is: 70,271.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,400.35 : 105,476.39 = 50,899.93 : x
  2. Step 2: Convert to fraction form
    76,400.35/105,476.39 = 50,899.93/x
  3. Step 3: Cross multiply
    76,400.35x = 105,476.39 × 50,899.93
  4. Step 4: Simplify right side
    76,400.35x = 5,368,740,867.65
  5. Step 5: Solve for x
    x = 5,368,740,867.65/76,400.35
  6. Step 6: Final answer
    x = 70,271.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.