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Finding the Fourth Proportional to 88,007.67, 121,450.34 and 47,721.30

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Solution

The fourth proportional to 88,007.67, 121,450.34 and 47,721.30 is: 65,855.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,007.67 : 121,450.34 = 47,721.30 : x
  2. Step 2: Convert to fraction form
    88,007.67/121,450.34 = 47,721.30/x
  3. Step 3: Cross multiply
    88,007.67x = 121,450.34 × 47,721.30
  4. Step 4: Simplify right side
    88,007.67x = 5,795,767,871.64
  5. Step 5: Solve for x
    x = 5,795,767,871.64/88,007.67
  6. Step 6: Final answer
    x = 65,855.26

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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.