Home / 45,929.45-68,894.54-12,651.35

Finding the Fourth Proportional to 45,929.45, 68,894.54 and 12,651.35

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Solution

The fourth proportional to 45,929.45, 68,894.54 and 12,651.35 is: 18,977.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,929.45 : 68,894.54 = 12,651.35 : x
  2. Step 2: Convert to fraction form
    45,929.45/68,894.54 = 12,651.35/x
  3. Step 3: Cross multiply
    45,929.45x = 68,894.54 × 12,651.35
  4. Step 4: Simplify right side
    45,929.45x = 871,608,594.16
  5. Step 5: Solve for x
    x = 871,608,594.16/45,929.45
  6. Step 6: Final answer
    x = 18,977.12

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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.