Home / 90,278.06-135,429.70-37,675.50

Finding the Fourth Proportional to 90,278.06, 135,429.70 and 37,675.50

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Solution

The fourth proportional to 90,278.06, 135,429.70 and 37,675.50 is: 56,518.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,278.06 : 135,429.70 = 37,675.50 : x
  2. Step 2: Convert to fraction form
    90,278.06/135,429.70 = 37,675.50/x
  3. Step 3: Cross multiply
    90,278.06x = 135,429.70 × 37,675.50
  4. Step 4: Simplify right side
    90,278.06x = 5,102,381,662.35
  5. Step 5: Solve for x
    x = 5,102,381,662.35/90,278.06
  6. Step 6: Final answer
    x = 56,518.51

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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.