Home / 89,343.12-123,284.39-53,532.21

Finding the Fourth Proportional to 89,343.12, 123,284.39 and 53,532.21

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Solution

The fourth proportional to 89,343.12, 123,284.39 and 53,532.21 is: 73,868.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,343.12 : 123,284.39 = 53,532.21 : x
  2. Step 2: Convert to fraction form
    89,343.12/123,284.39 = 53,532.21/x
  3. Step 3: Cross multiply
    89,343.12x = 123,284.39 × 53,532.21
  4. Step 4: Simplify right side
    89,343.12x = 6,599,685,855.20
  5. Step 5: Solve for x
    x = 6,599,685,855.20/89,343.12
  6. Step 6: Final answer
    x = 73,868.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.