Home / 90,034.32-135,080.64-43,281.12

Finding the Fourth Proportional to 90,034.32, 135,080.64 and 43,281.12

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Solution

The fourth proportional to 90,034.32, 135,080.64 and 43,281.12 is: 64,935.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,034.32 : 135,080.64 = 43,281.12 : x
  2. Step 2: Convert to fraction form
    90,034.32/135,080.64 = 43,281.12/x
  3. Step 3: Cross multiply
    90,034.32x = 135,080.64 × 43,281.12
  4. Step 4: Simplify right side
    90,034.32x = 5,846,441,389.52
  5. Step 5: Solve for x
    x = 5,846,441,389.52/90,034.32
  6. Step 6: Final answer
    x = 64,935.70

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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.