Home / 90,492.42-135,783.90-40,608.18

Finding the Fourth Proportional to 90,492.42, 135,783.90 and 40,608.18

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Solution

The fourth proportional to 90,492.42, 135,783.90 and 40,608.18 is: 60,932.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,492.42 : 135,783.90 = 40,608.18 : x
  2. Step 2: Convert to fraction form
    90,492.42/135,783.90 = 40,608.18/x
  3. Step 3: Cross multiply
    90,492.42x = 135,783.90 × 40,608.18
  4. Step 4: Simplify right side
    90,492.42x = 5,513,937,052.30
  5. Step 5: Solve for x
    x = 5,513,937,052.30/90,492.42
  6. Step 6: Final answer
    x = 60,932.58

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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.