Home / 90,013.17-135,079.44-37,422.57

Finding the Fourth Proportional to 90,013.17, 135,079.44 and 37,422.57

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Solution

The fourth proportional to 90,013.17, 135,079.44 and 37,422.57 is: 56,158.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,013.17 : 135,079.44 = 37,422.57 : x
  2. Step 2: Convert to fraction form
    90,013.17/135,079.44 = 37,422.57/x
  3. Step 3: Cross multiply
    90,013.17x = 135,079.44 × 37,422.57
  4. Step 4: Simplify right side
    90,013.17x = 5,055,019,798.96
  5. Step 5: Solve for x
    x = 5,055,019,798.96/90,013.17
  6. Step 6: Final answer
    x = 56,158.67

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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.