Home / 55,448.41-83,117.19-19,900.07

Finding the Fourth Proportional to 55,448.41, 83,117.19 and 19,900.07

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Solution

The fourth proportional to 55,448.41, 83,117.19 and 19,900.07 is: 29,830.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,448.41 : 83,117.19 = 19,900.07 : x
  2. Step 2: Convert to fraction form
    55,448.41/83,117.19 = 19,900.07/x
  3. Step 3: Cross multiply
    55,448.41x = 83,117.19 × 19,900.07
  4. Step 4: Simplify right side
    55,448.41x = 1,654,037,899.20
  5. Step 5: Solve for x
    x = 1,654,037,899.20/55,448.41
  6. Step 6: Final answer
    x = 29,830.21

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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.