Home / 70,821.10-97,749.74-40,605.88

Finding the Fourth Proportional to 70,821.10, 97,749.74 and 40,605.88

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Solution

The fourth proportional to 70,821.10, 97,749.74 and 40,605.88 is: 56,045.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,821.10 : 97,749.74 = 40,605.88 : x
  2. Step 2: Convert to fraction form
    70,821.10/97,749.74 = 40,605.88/x
  3. Step 3: Cross multiply
    70,821.10x = 97,749.74 × 40,605.88
  4. Step 4: Simplify right side
    70,821.10x = 3,969,214,212.47
  5. Step 5: Solve for x
    x = 3,969,214,212.47/70,821.10
  6. Step 6: Final answer
    x = 56,045.64

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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.