Home / 81,064.28-111,780.54-52,717.40

Finding the Fourth Proportional to 81,064.28, 111,780.54 and 52,717.40

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Solution

The fourth proportional to 81,064.28, 111,780.54 and 52,717.40 is: 72,692.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,064.28 : 111,780.54 = 52,717.40 : x
  2. Step 2: Convert to fraction form
    81,064.28/111,780.54 = 52,717.40/x
  3. Step 3: Cross multiply
    81,064.28x = 111,780.54 × 52,717.40
  4. Step 4: Simplify right side
    81,064.28x = 5,892,779,439.40
  5. Step 5: Solve for x
    x = 5,892,779,439.40/81,064.28
  6. Step 6: Final answer
    x = 72,692.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.