Home / 56,784.80-78,357.30-32,918.96

Finding the Fourth Proportional to 56,784.80, 78,357.30 and 32,918.96

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Solution

The fourth proportional to 56,784.80, 78,357.30 and 32,918.96 is: 45,424.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,784.80 : 78,357.30 = 32,918.96 : x
  2. Step 2: Convert to fraction form
    56,784.80/78,357.30 = 32,918.96/x
  3. Step 3: Cross multiply
    56,784.80x = 78,357.30 × 32,918.96
  4. Step 4: Simplify right side
    56,784.80x = 2,579,440,824.41
  5. Step 5: Solve for x
    x = 2,579,440,824.41/56,784.80
  6. Step 6: Final answer
    x = 45,424.85

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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.