Home / 51,164.09-76,370.89-47,411.78

Finding the Fourth Proportional to 51,164.09, 76,370.89 and 47,411.78

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Solution

The fourth proportional to 51,164.09, 76,370.89 and 47,411.78 is: 70,769.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,164.09 : 76,370.89 = 47,411.78 : x
  2. Step 2: Convert to fraction form
    51,164.09/76,370.89 = 47,411.78/x
  3. Step 3: Cross multiply
    51,164.09x = 76,370.89 × 47,411.78
  4. Step 4: Simplify right side
    51,164.09x = 3,620,879,835.08
  5. Step 5: Solve for x
    x = 3,620,879,835.08/51,164.09
  6. Step 6: Final answer
    x = 70,769.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.