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Finding the Fourth Proportional to 72,518.44, 108,777.23 and 39,448.67

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Solution

The fourth proportional to 72,518.44, 108,777.23 and 39,448.67 is: 59,172.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,518.44 : 108,777.23 = 39,448.67 : x
  2. Step 2: Convert to fraction form
    72,518.44/108,777.23 = 39,448.67/x
  3. Step 3: Cross multiply
    72,518.44x = 108,777.23 × 39,448.67
  4. Step 4: Simplify right side
    72,518.44x = 4,291,117,068.46
  5. Step 5: Solve for x
    x = 4,291,117,068.46/72,518.44
  6. Step 6: Final answer
    x = 59,172.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.