Home / 51,172.32-76,768.83-21,590.22

Finding the Fourth Proportional to 51,172.32, 76,768.83 and 21,590.22

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Solution

The fourth proportional to 51,172.32, 76,768.83 and 21,590.22 is: 32,389.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,172.32 : 76,768.83 = 21,590.22 : x
  2. Step 2: Convert to fraction form
    51,172.32/76,768.83 = 21,590.22/x
  3. Step 3: Cross multiply
    51,172.32x = 76,768.83 × 21,590.22
  4. Step 4: Simplify right side
    51,172.32x = 1,657,455,928.84
  5. Step 5: Solve for x
    x = 1,657,455,928.84/51,172.32
  6. Step 6: Final answer
    x = 32,389.70

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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.