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Finding the Fourth Proportional to 71,000.98, 97,986.10 and 40,796.08

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Solution

The fourth proportional to 71,000.98, 97,986.10 and 40,796.08 is: 56,301.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,000.98 : 97,986.10 = 40,796.08 : x
  2. Step 2: Convert to fraction form
    71,000.98/97,986.10 = 40,796.08/x
  3. Step 3: Cross multiply
    71,000.98x = 97,986.10 × 40,796.08
  4. Step 4: Simplify right side
    71,000.98x = 3,997,448,774.49
  5. Step 5: Solve for x
    x = 3,997,448,774.49/71,000.98
  6. Step 6: Final answer
    x = 56,301.32

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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.