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Finding the Fourth Proportional to 70,620.39, 97,464.75 and 40,812.39

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Solution

The fourth proportional to 70,620.39, 97,464.75 and 40,812.39 is: 56,326.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,620.39 : 97,464.75 = 40,812.39 : x
  2. Step 2: Convert to fraction form
    70,620.39/97,464.75 = 40,812.39/x
  3. Step 3: Cross multiply
    70,620.39x = 97,464.75 × 40,812.39
  4. Step 4: Simplify right side
    70,620.39x = 3,977,769,388.25
  5. Step 5: Solve for x
    x = 3,977,769,388.25/70,620.39
  6. Step 6: Final answer
    x = 56,326.08

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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.