Home / 90,029.76-135,084.24-47,899.94

Finding the Fourth Proportional to 90,029.76, 135,084.24 and 47,899.94

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Solution

The fourth proportional to 90,029.76, 135,084.24 and 47,899.94 is: 71,870.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,029.76 : 135,084.24 = 47,899.94 : x
  2. Step 2: Convert to fraction form
    90,029.76/135,084.24 = 47,899.94/x
  3. Step 3: Cross multiply
    90,029.76x = 135,084.24 × 47,899.94
  4. Step 4: Simplify right side
    90,029.76x = 6,470,526,990.95
  5. Step 5: Solve for x
    x = 6,470,526,990.95/90,029.76
  6. Step 6: Final answer
    x = 71,870.98

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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.