Home / 55,243.16-82,852.80-15,789.68

Finding the Fourth Proportional to 55,243.16, 82,852.80 and 15,789.68

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Solution

The fourth proportional to 55,243.16, 82,852.80 and 15,789.68 is: 23,681.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,243.16 : 82,852.80 = 15,789.68 : x
  2. Step 2: Convert to fraction form
    55,243.16/82,852.80 = 15,789.68/x
  3. Step 3: Cross multiply
    55,243.16x = 82,852.80 × 15,789.68
  4. Step 4: Simplify right side
    55,243.16x = 1,308,219,199.10
  5. Step 5: Solve for x
    x = 1,308,219,199.10/55,243.16
  6. Step 6: Final answer
    x = 23,681.11

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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.