Home / 76,293.32-105,317.70-71,511.08

Finding the Fourth Proportional to 76,293.32, 105,317.70 and 71,511.08

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Solution

The fourth proportional to 76,293.32, 105,317.70 and 71,511.08 is: 98,716.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,293.32 : 105,317.70 = 71,511.08 : x
  2. Step 2: Convert to fraction form
    76,293.32/105,317.70 = 71,511.08/x
  3. Step 3: Cross multiply
    76,293.32x = 105,317.70 × 71,511.08
  4. Step 4: Simplify right side
    76,293.32x = 7,531,382,470.12
  5. Step 5: Solve for x
    x = 7,531,382,470.12/76,293.32
  6. Step 6: Final answer
    x = 98,716.15

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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.