Home / 90,255.06-135,395.15-37,652.45

Finding the Fourth Proportional to 90,255.06, 135,395.15 and 37,652.45

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Solution

The fourth proportional to 90,255.06, 135,395.15 and 37,652.45 is: 56,483.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,255.06 : 135,395.15 = 37,652.45 : x
  2. Step 2: Convert to fraction form
    90,255.06/135,395.15 = 37,652.45/x
  3. Step 3: Cross multiply
    90,255.06x = 135,395.15 × 37,652.45
  4. Step 4: Simplify right side
    90,255.06x = 5,097,958,250.38
  5. Step 5: Solve for x
    x = 5,097,958,250.38/90,255.06
  6. Step 6: Final answer
    x = 56,483.91

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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.