Home / 54,708.74-82,030.28-21,389.09

Finding the Fourth Proportional to 54,708.74, 82,030.28 and 21,389.09

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Solution

The fourth proportional to 54,708.74, 82,030.28 and 21,389.09 is: 32,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,708.74 : 82,030.28 = 21,389.09 : x
  2. Step 2: Convert to fraction form
    54,708.74/82,030.28 = 21,389.09/x
  3. Step 3: Cross multiply
    54,708.74x = 82,030.28 × 21,389.09
  4. Step 4: Simplify right side
    54,708.74x = 1,754,553,041.65
  5. Step 5: Solve for x
    x = 1,754,553,041.65/54,708.74
  6. Step 6: Final answer
    x = 32,070.80

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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.