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Finding the Fourth Proportional to 72,804.37, 100,450.40 and 42,597.11

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Solution

The fourth proportional to 72,804.37, 100,450.40 and 42,597.11 is: 58,772.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,804.37 : 100,450.40 = 42,597.11 : x
  2. Step 2: Convert to fraction form
    72,804.37/100,450.40 = 42,597.11/x
  3. Step 3: Cross multiply
    72,804.37x = 100,450.40 × 42,597.11
  4. Step 4: Simplify right side
    72,804.37x = 4,278,896,211.45
  5. Step 5: Solve for x
    x = 4,278,896,211.45/72,804.37
  6. Step 6: Final answer
    x = 58,772.52

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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.