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Finding the Fourth Proportional to 64,533.84, 96,820.20 and 20,158.80

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Solution

The fourth proportional to 64,533.84, 96,820.20 and 20,158.80 is: 30,244.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,533.84 : 96,820.20 = 20,158.80 : x
  2. Step 2: Convert to fraction form
    64,533.84/96,820.20 = 20,158.80/x
  3. Step 3: Cross multiply
    64,533.84x = 96,820.20 × 20,158.80
  4. Step 4: Simplify right side
    64,533.84x = 1,951,779,047.76
  5. Step 5: Solve for x
    x = 1,951,779,047.76/64,533.84
  6. Step 6: Final answer
    x = 30,244.27

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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.