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Finding the Fourth Proportional to 70,817.60, 97,744.91 and 40,602.38

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Solution

The fourth proportional to 70,817.60, 97,744.91 and 40,602.38 is: 56,040.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,817.60 : 97,744.91 = 40,602.38 : x
  2. Step 2: Convert to fraction form
    70,817.60/97,744.91 = 40,602.38/x
  3. Step 3: Cross multiply
    70,817.60x = 97,744.91 × 40,602.38
  4. Step 4: Simplify right side
    70,817.60x = 3,968,675,287.15
  5. Step 5: Solve for x
    x = 3,968,675,287.15/70,817.60
  6. Step 6: Final answer
    x = 56,040.81

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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.