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Finding the Fourth Proportional to 64,445.56, 96,677.34 and 20,075.56

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Solution

The fourth proportional to 64,445.56, 96,677.34 and 20,075.56 is: 30,116.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,445.56 : 96,677.34 = 20,075.56 : x
  2. Step 2: Convert to fraction form
    64,445.56/96,677.34 = 20,075.56/x
  3. Step 3: Cross multiply
    64,445.56x = 96,677.34 × 20,075.56
  4. Step 4: Simplify right side
    64,445.56x = 1,940,851,739.81
  5. Step 5: Solve for x
    x = 1,940,851,739.81/64,445.56
  6. Step 6: Final answer
    x = 30,116.14

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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.