Home / 56,478.90-84,668.02-21,443.16

Finding the Fourth Proportional to 56,478.90, 84,668.02 and 21,443.16

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Solution

The fourth proportional to 56,478.90, 84,668.02 and 21,443.16 is: 32,145.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,478.90 : 84,668.02 = 21,443.16 : x
  2. Step 2: Convert to fraction form
    56,478.90/84,668.02 = 21,443.16/x
  3. Step 3: Cross multiply
    56,478.90x = 84,668.02 × 21,443.16
  4. Step 4: Simplify right side
    56,478.90x = 1,815,550,163.64
  5. Step 5: Solve for x
    x = 1,815,550,163.64/56,478.90
  6. Step 6: Final answer
    x = 32,145.63

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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.