Home / 82,961.10-124,441.65-70,001.10

Finding the Fourth Proportional to 82,961.10, 124,441.65 and 70,001.10

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Solution

The fourth proportional to 82,961.10, 124,441.65 and 70,001.10 is: 105,001.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,961.10 : 124,441.65 = 70,001.10 : x
  2. Step 2: Convert to fraction form
    82,961.10/124,441.65 = 70,001.10/x
  3. Step 3: Cross multiply
    82,961.10x = 124,441.65 × 70,001.10
  4. Step 4: Simplify right side
    82,961.10x = 8,711,052,385.82
  5. Step 5: Solve for x
    x = 8,711,052,385.82/82,961.10
  6. Step 6: Final answer
    x = 105,001.65

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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.