Home / 75,620.30-113,430.45-52,000.70

Finding the Fourth Proportional to 75,620.30, 113,430.45 and 52,000.70

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Solution

The fourth proportional to 75,620.30, 113,430.45 and 52,000.70 is: 78,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,620.30 : 113,430.45 = 52,000.70 : x
  2. Step 2: Convert to fraction form
    75,620.30/113,430.45 = 52,000.70/x
  3. Step 3: Cross multiply
    75,620.30x = 113,430.45 × 52,000.70
  4. Step 4: Simplify right side
    75,620.30x = 5,898,462,801.32
  5. Step 5: Solve for x
    x = 5,898,462,801.32/75,620.30
  6. Step 6: Final answer
    x = 78,001.05

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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.