Home / 45,172.16-67,769-15,590.25

Finding the Fourth Proportional to 45,172.16, 67,769 and 15,590.25

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Solution

The fourth proportional to 45,172.16, 67,769 and 15,590.25 is: 23,389.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,172.16 : 67,769 = 15,590.25 : x
  2. Step 2: Convert to fraction form
    45,172.16/67,769 = 15,590.25/x
  3. Step 3: Cross multiply
    45,172.16x = 67,769 × 15,590.25
  4. Step 4: Simplify right side
    45,172.16x = 1,056,535,652.25
  5. Step 5: Solve for x
    x = 1,056,535,652.25/45,172.16
  6. Step 6: Final answer
    x = 23,389.09

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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.