Home / 90,370.64-135,466.32-42,902.30

Finding the Fourth Proportional to 90,370.64, 135,466.32 and 42,902.30

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Solution

The fourth proportional to 90,370.64, 135,466.32 and 42,902.30 is: 64,310.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,370.64 : 135,466.32 = 42,902.30 : x
  2. Step 2: Convert to fraction form
    90,370.64/135,466.32 = 42,902.30/x
  3. Step 3: Cross multiply
    90,370.64x = 135,466.32 × 42,902.30
  4. Step 4: Simplify right side
    90,370.64x = 5,811,816,700.54
  5. Step 5: Solve for x
    x = 5,811,816,700.54/90,370.64
  6. Step 6: Final answer
    x = 64,310.89

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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.