Home / 70,629.50-97,477.36-40,821.50

Finding the Fourth Proportional to 70,629.50, 97,477.36 and 40,821.50

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Solution

The fourth proportional to 70,629.50, 97,477.36 and 40,821.50 is: 56,338.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,629.50 : 97,477.36 = 40,821.50 : x
  2. Step 2: Convert to fraction form
    70,629.50/97,477.36 = 40,821.50/x
  3. Step 3: Cross multiply
    70,629.50x = 97,477.36 × 40,821.50
  4. Step 4: Simplify right side
    70,629.50x = 3,979,172,051.24
  5. Step 5: Solve for x
    x = 3,979,172,051.24/70,629.50
  6. Step 6: Final answer
    x = 56,338.67

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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.