Home / 71,018.10-98,009.73-40,813.20

Finding the Fourth Proportional to 71,018.10, 98,009.73 and 40,813.20

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Solution

The fourth proportional to 71,018.10, 98,009.73 and 40,813.20 is: 56,324.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,018.10 : 98,009.73 = 40,813.20 : x
  2. Step 2: Convert to fraction form
    71,018.10/98,009.73 = 40,813.20/x
  3. Step 3: Cross multiply
    71,018.10x = 98,009.73 × 40,813.20
  4. Step 4: Simplify right side
    71,018.10x = 4,000,090,712.44
  5. Step 5: Solve for x
    x = 4,000,090,712.44/71,018.10
  6. Step 6: Final answer
    x = 56,324.95

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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.