Home / 43,257.60-64,742.40-31,377.60

Finding the Fourth Proportional to 43,257.60, 64,742.40 and 31,377.60

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Solution

The fourth proportional to 43,257.60, 64,742.40 and 31,377.60 is: 46,961.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,257.60 : 64,742.40 = 31,377.60 : x
  2. Step 2: Convert to fraction form
    43,257.60/64,742.40 = 31,377.60/x
  3. Step 3: Cross multiply
    43,257.60x = 64,742.40 × 31,377.60
  4. Step 4: Simplify right side
    43,257.60x = 2,031,461,130.24
  5. Step 5: Solve for x
    x = 2,031,461,130.24/43,257.60
  6. Step 6: Final answer
    x = 46,961.95

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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.