Home / 56,905.86-85,340.42-18,945.02

Finding the Fourth Proportional to 56,905.86, 85,340.42 and 18,945.02

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Solution

The fourth proportional to 56,905.86, 85,340.42 and 18,945.02 is: 28,411.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,905.86 : 85,340.42 = 18,945.02 : x
  2. Step 2: Convert to fraction form
    56,905.86/85,340.42 = 18,945.02/x
  3. Step 3: Cross multiply
    56,905.86x = 85,340.42 × 18,945.02
  4. Step 4: Simplify right side
    56,905.86x = 1,616,775,963.71
  5. Step 5: Solve for x
    x = 1,616,775,963.71/56,905.86
  6. Step 6: Final answer
    x = 28,411.41

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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.