Home / 52,018.10-78,027.35-12,575.15

Finding the Fourth Proportional to 52,018.10, 78,027.35 and 12,575.15

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Solution

The fourth proportional to 52,018.10, 78,027.35 and 12,575.15 is: 18,862.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,018.10 : 78,027.35 = 12,575.15 : x
  2. Step 2: Convert to fraction form
    52,018.10/78,027.35 = 12,575.15/x
  3. Step 3: Cross multiply
    52,018.10x = 78,027.35 × 12,575.15
  4. Step 4: Simplify right side
    52,018.10x = 981,205,540.68
  5. Step 5: Solve for x
    x = 981,205,540.68/52,018.10
  6. Step 6: Final answer
    x = 18,862.77

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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.