Home / 55,639.33-83,459.10-13,519.45

Finding the Fourth Proportional to 55,639.33, 83,459.10 and 13,519.45

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Solution

The fourth proportional to 55,639.33, 83,459.10 and 13,519.45 is: 20,279.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,639.33 : 83,459.10 = 13,519.45 : x
  2. Step 2: Convert to fraction form
    55,639.33/83,459.10 = 13,519.45/x
  3. Step 3: Cross multiply
    55,639.33x = 83,459.10 × 13,519.45
  4. Step 4: Simplify right side
    55,639.33x = 1,128,321,218.95
  5. Step 5: Solve for x
    x = 1,128,321,218.95/55,639.33
  6. Step 6: Final answer
    x = 20,279.20

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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.