Home / 82,410.30-113,640.75-70,513.02

Finding the Fourth Proportional to 82,410.30, 113,640.75 and 70,513.02

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Solution

The fourth proportional to 82,410.30, 113,640.75 and 70,513.02 is: 97,234.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,410.30 : 113,640.75 = 70,513.02 : x
  2. Step 2: Convert to fraction form
    82,410.30/113,640.75 = 70,513.02/x
  3. Step 3: Cross multiply
    82,410.30x = 113,640.75 × 70,513.02
  4. Step 4: Simplify right side
    82,410.30x = 8,013,152,477.57
  5. Step 5: Solve for x
    x = 8,013,152,477.57/82,410.30
  6. Step 6: Final answer
    x = 97,234.84

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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.