Home / 82,307.21-113,583.91-48,315.70

Finding the Fourth Proportional to 82,307.21, 113,583.91 and 48,315.70

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Solution

The fourth proportional to 82,307.21, 113,583.91 and 48,315.70 is: 66,675.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,307.21 : 113,583.91 = 48,315.70 : x
  2. Step 2: Convert to fraction form
    82,307.21/113,583.91 = 48,315.70/x
  3. Step 3: Cross multiply
    82,307.21x = 113,583.91 × 48,315.70
  4. Step 4: Simplify right side
    82,307.21x = 5,487,885,502.67
  5. Step 5: Solve for x
    x = 5,487,885,502.67/82,307.21
  6. Step 6: Final answer
    x = 66,675.64

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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.