Home / 56,220.57-84,303.31-18,767.79

Finding the Fourth Proportional to 56,220.57, 84,303.31 and 18,767.79

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Solution

The fourth proportional to 56,220.57, 84,303.31 and 18,767.79 is: 28,142.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,220.57 : 84,303.31 = 18,767.79 : x
  2. Step 2: Convert to fraction form
    56,220.57/84,303.31 = 18,767.79/x
  3. Step 3: Cross multiply
    56,220.57x = 84,303.31 × 18,767.79
  4. Step 4: Simplify right side
    56,220.57x = 1,582,186,818.38
  5. Step 5: Solve for x
    x = 1,582,186,818.38/56,220.57
  6. Step 6: Final answer
    x = 28,142.49

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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.