Home / 55,979.80-83,967.90-18,541.60

Finding the Fourth Proportional to 55,979.80, 83,967.90 and 18,541.60

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Solution

The fourth proportional to 55,979.80, 83,967.90 and 18,541.60 is: 27,811.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,979.80 : 83,967.90 = 18,541.60 : x
  2. Step 2: Convert to fraction form
    55,979.80/83,967.90 = 18,541.60/x
  3. Step 3: Cross multiply
    55,979.80x = 83,967.90 × 18,541.60
  4. Step 4: Simplify right side
    55,979.80x = 1,556,899,214.64
  5. Step 5: Solve for x
    x = 1,556,899,214.64/55,979.80
  6. Step 6: Final answer
    x = 27,811.80

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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.