Home / 42,709.46-64,064.40-28,011.44

Finding the Fourth Proportional to 42,709.46, 64,064.40 and 28,011.44

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Solution

The fourth proportional to 42,709.46, 64,064.40 and 28,011.44 is: 42,017.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,709.46 : 64,064.40 = 28,011.44 : x
  2. Step 2: Convert to fraction form
    42,709.46/64,064.40 = 28,011.44/x
  3. Step 3: Cross multiply
    42,709.46x = 64,064.40 × 28,011.44
  4. Step 4: Simplify right side
    42,709.46x = 1,794,535,776.41
  5. Step 5: Solve for x
    x = 1,794,535,776.41/42,709.46
  6. Step 6: Final answer
    x = 42,017.30

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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.