Home / 90,343.32-135,536.51-31,179.50

Finding the Fourth Proportional to 90,343.32, 135,536.51 and 31,179.50

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Solution

The fourth proportional to 90,343.32, 135,536.51 and 31,179.50 is: 46,776.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,343.32 : 135,536.51 = 31,179.50 : x
  2. Step 2: Convert to fraction form
    90,343.32/135,536.51 = 31,179.50/x
  3. Step 3: Cross multiply
    90,343.32x = 135,536.51 × 31,179.50
  4. Step 4: Simplify right side
    90,343.32x = 4,225,960,613.55
  5. Step 5: Solve for x
    x = 4,225,960,613.55/90,343.32
  6. Step 6: Final answer
    x = 46,776.68

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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.