Home / 78,284.16-107,367.90-75,069.24

Finding the Fourth Proportional to 78,284.16, 107,367.90 and 75,069.24

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Solution

The fourth proportional to 78,284.16, 107,367.90 and 75,069.24 is: 102,958.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,284.16 : 107,367.90 = 75,069.24 : x
  2. Step 2: Convert to fraction form
    78,284.16/107,367.90 = 75,069.24/x
  3. Step 3: Cross multiply
    78,284.16x = 107,367.90 × 75,069.24
  4. Step 4: Simplify right side
    78,284.16x = 8,060,026,653.40
  5. Step 5: Solve for x
    x = 8,060,026,653.40/78,284.16
  6. Step 6: Final answer
    x = 102,958.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.