Home / 45,210.78-67,804.83-21,503.70

Finding the Fourth Proportional to 45,210.78, 67,804.83 and 21,503.70

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Solution

The fourth proportional to 45,210.78, 67,804.83 and 21,503.70 is: 32,250.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,210.78 : 67,804.83 = 21,503.70 : x
  2. Step 2: Convert to fraction form
    45,210.78/67,804.83 = 21,503.70/x
  3. Step 3: Cross multiply
    45,210.78x = 67,804.83 × 21,503.70
  4. Step 4: Simplify right side
    45,210.78x = 1,458,054,722.87
  5. Step 5: Solve for x
    x = 1,458,054,722.87/45,210.78
  6. Step 6: Final answer
    x = 32,250.16

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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.