Home / 90,343.72-135,491.10-37,742.20

Finding the Fourth Proportional to 90,343.72, 135,491.10 and 37,742.20

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Solution

The fourth proportional to 90,343.72, 135,491.10 and 37,742.20 is: 56,603.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,343.72 : 135,491.10 = 37,742.20 : x
  2. Step 2: Convert to fraction form
    90,343.72/135,491.10 = 37,742.20/x
  3. Step 3: Cross multiply
    90,343.72x = 135,491.10 × 37,742.20
  4. Step 4: Simplify right side
    90,343.72x = 5,113,732,194.42
  5. Step 5: Solve for x
    x = 5,113,732,194.42/90,343.72
  6. Step 6: Final answer
    x = 56,603.07

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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.