Home / 71,003.12-97,989.04-40,798.20

Finding the Fourth Proportional to 71,003.12, 97,989.04 and 40,798.20

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Solution

The fourth proportional to 71,003.12, 97,989.04 and 40,798.20 is: 56,304.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,003.12 : 97,989.04 = 40,798.20 : x
  2. Step 2: Convert to fraction form
    71,003.12/97,989.04 = 40,798.20/x
  3. Step 3: Cross multiply
    71,003.12x = 97,989.04 × 40,798.20
  4. Step 4: Simplify right side
    71,003.12x = 3,997,776,451.73
  5. Step 5: Solve for x
    x = 3,997,776,451.73/71,003.12
  6. Step 6: Final answer
    x = 56,304.24

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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.