Home / 90,975.12-136,590.20-46,633.68

Finding the Fourth Proportional to 90,975.12, 136,590.20 and 46,633.68

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Solution

The fourth proportional to 90,975.12, 136,590.20 and 46,633.68 is: 70,015.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,975.12 : 136,590.20 = 46,633.68 : x
  2. Step 2: Convert to fraction form
    90,975.12/136,590.20 = 46,633.68/x
  3. Step 3: Cross multiply
    90,975.12x = 136,590.20 × 46,633.68
  4. Step 4: Simplify right side
    90,975.12x = 6,369,703,677.94
  5. Step 5: Solve for x
    x = 6,369,703,677.94/90,975.12
  6. Step 6: Final answer
    x = 70,015.89

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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.