Home / 76,907.08-115,492.38-47,498.68

Finding the Fourth Proportional to 76,907.08, 115,492.38 and 47,498.68

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Solution

The fourth proportional to 76,907.08, 115,492.38 and 47,498.68 is: 71,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,907.08 : 115,492.38 = 47,498.68 : x
  2. Step 2: Convert to fraction form
    76,907.08/115,492.38 = 47,498.68/x
  3. Step 3: Cross multiply
    76,907.08x = 115,492.38 × 47,498.68
  4. Step 4: Simplify right side
    76,907.08x = 5,485,735,600.06
  5. Step 5: Solve for x
    x = 5,485,735,600.06/76,907.08
  6. Step 6: Final answer
    x = 71,329.40

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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.