Home / 55,519-83,292.90-19,979.08

Finding the Fourth Proportional to 55,519, 83,292.90 and 19,979.08

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Solution

The fourth proportional to 55,519, 83,292.90 and 19,979.08 is: 29,973.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,519 : 83,292.90 = 19,979.08 : x
  2. Step 2: Convert to fraction form
    55,519/83,292.90 = 19,979.08/x
  3. Step 3: Cross multiply
    55,519x = 83,292.90 × 19,979.08
  4. Step 4: Simplify right side
    55,519x = 1,664,115,512.53
  5. Step 5: Solve for x
    x = 1,664,115,512.53/55,519
  6. Step 6: Final answer
    x = 29,973.80

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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.