Home / 45,281.11-67,823.20-21,858.34

Finding the Fourth Proportional to 45,281.11, 67,823.20 and 21,858.34

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Solution

The fourth proportional to 45,281.11, 67,823.20 and 21,858.34 is: 32,739.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,281.11 : 67,823.20 = 21,858.34 : x
  2. Step 2: Convert to fraction form
    45,281.11/67,823.20 = 21,858.34/x
  3. Step 3: Cross multiply
    45,281.11x = 67,823.20 × 21,858.34
  4. Step 4: Simplify right side
    45,281.11x = 1,482,502,565.49
  5. Step 5: Solve for x
    x = 1,482,502,565.49/45,281.11
  6. Step 6: Final answer
    x = 32,739.98

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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.