Home / 43,099.12-64,648.68-13,519.32

Finding the Fourth Proportional to 43,099.12, 64,648.68 and 13,519.32

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Solution

The fourth proportional to 43,099.12, 64,648.68 and 13,519.32 is: 20,278.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,099.12 : 64,648.68 = 13,519.32 : x
  2. Step 2: Convert to fraction form
    43,099.12/64,648.68 = 13,519.32/x
  3. Step 3: Cross multiply
    43,099.12x = 64,648.68 × 13,519.32
  4. Step 4: Simplify right side
    43,099.12x = 874,006,192.50
  5. Step 5: Solve for x
    x = 874,006,192.50/43,099.12
  6. Step 6: Final answer
    x = 20,278.98

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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.