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Finding the Fourth Proportional to 73,380.60, 109,779.30 and 63,628.20

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Solution

The fourth proportional to 73,380.60, 109,779.30 and 63,628.20 is: 95,189.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,380.60 : 109,779.30 = 63,628.20 : x
  2. Step 2: Convert to fraction form
    73,380.60/109,779.30 = 63,628.20/x
  3. Step 3: Cross multiply
    73,380.60x = 109,779.30 × 63,628.20
  4. Step 4: Simplify right side
    73,380.60x = 6,985,059,256.26
  5. Step 5: Solve for x
    x = 6,985,059,256.26/73,380.60
  6. Step 6: Final answer
    x = 95,189.45

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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.