Home / 82,708.56-124,075.14-38,339.80

Finding the Fourth Proportional to 82,708.56, 124,075.14 and 38,339.80

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Solution

The fourth proportional to 82,708.56, 124,075.14 and 38,339.80 is: 57,515.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,708.56 : 124,075.14 = 38,339.80 : x
  2. Step 2: Convert to fraction form
    82,708.56/124,075.14 = 38,339.80/x
  3. Step 3: Cross multiply
    82,708.56x = 124,075.14 × 38,339.80
  4. Step 4: Simplify right side
    82,708.56x = 4,757,015,814.27
  5. Step 5: Solve for x
    x = 4,757,015,814.27/82,708.56
  6. Step 6: Final answer
    x = 57,515.40

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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.