Home / 90,780.08-135,878.08-48,554.52

Finding the Fourth Proportional to 90,780.08, 135,878.08 and 48,554.52

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Solution

The fourth proportional to 90,780.08, 135,878.08 and 48,554.52 is: 72,675.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,780.08 : 135,878.08 = 48,554.52 : x
  2. Step 2: Convert to fraction form
    90,780.08/135,878.08 = 48,554.52/x
  3. Step 3: Cross multiply
    90,780.08x = 135,878.08 × 48,554.52
  4. Step 4: Simplify right side
    90,780.08x = 6,597,494,952.92
  5. Step 5: Solve for x
    x = 6,597,494,952.92/90,780.08
  6. Step 6: Final answer
    x = 72,675.58

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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.