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Finding the Fourth Proportional to 71,012.96, 98,001.06 and 40,808.06

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Solution

The fourth proportional to 71,012.96, 98,001.06 and 40,808.06 is: 56,316.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,012.96 : 98,001.06 = 40,808.06 : x
  2. Step 2: Convert to fraction form
    71,012.96/98,001.06 = 40,808.06/x
  3. Step 3: Cross multiply
    71,012.96x = 98,001.06 × 40,808.06
  4. Step 4: Simplify right side
    71,012.96x = 3,999,233,136.54
  5. Step 5: Solve for x
    x = 3,999,233,136.54/71,012.96
  6. Step 6: Final answer
    x = 56,316.95

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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.