Home / 82,673.36-114,045-57,479.12

Finding the Fourth Proportional to 82,673.36, 114,045 and 57,479.12

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Solution

The fourth proportional to 82,673.36, 114,045 and 57,479.12 is: 79,290.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,673.36 : 114,045 = 57,479.12 : x
  2. Step 2: Convert to fraction form
    82,673.36/114,045 = 57,479.12/x
  3. Step 3: Cross multiply
    82,673.36x = 114,045 × 57,479.12
  4. Step 4: Simplify right side
    82,673.36x = 6,555,206,240.40
  5. Step 5: Solve for x
    x = 6,555,206,240.40/82,673.36
  6. Step 6: Final answer
    x = 79,290.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.