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Finding the Fourth Proportional to 96,000.30, 144,000.45 and 54,009.90

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Solution

The fourth proportional to 96,000.30, 144,000.45 and 54,009.90 is: 81,014.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,000.30 : 144,000.45 = 54,009.90 : x
  2. Step 2: Convert to fraction form
    96,000.30/144,000.45 = 54,009.90/x
  3. Step 3: Cross multiply
    96,000.30x = 144,000.45 × 54,009.90
  4. Step 4: Simplify right side
    96,000.30x = 7,777,449,904.46
  5. Step 5: Solve for x
    x = 7,777,449,904.46/96,000.30
  6. Step 6: Final answer
    x = 81,014.85

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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.