Home / 76,017.78-104,909.85-42,027.30

Finding the Fourth Proportional to 76,017.78, 104,909.85 and 42,027.30

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Solution

The fourth proportional to 76,017.78, 104,909.85 and 42,027.30 is: 58,000.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,017.78 : 104,909.85 = 42,027.30 : x
  2. Step 2: Convert to fraction form
    76,017.78/104,909.85 = 42,027.30/x
  3. Step 3: Cross multiply
    76,017.78x = 104,909.85 × 42,027.30
  4. Step 4: Simplify right side
    76,017.78x = 4,409,077,738.91
  5. Step 5: Solve for x
    x = 4,409,077,738.91/76,017.78
  6. Step 6: Final answer
    x = 58,000.61

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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.