Home / 56,220.92-84,340.02-18,769.40

Finding the Fourth Proportional to 56,220.92, 84,340.02 and 18,769.40

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Solution

The fourth proportional to 56,220.92, 84,340.02 and 18,769.40 is: 28,156.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,220.92 : 84,340.02 = 18,769.40 : x
  2. Step 2: Convert to fraction form
    56,220.92/84,340.02 = 18,769.40/x
  3. Step 3: Cross multiply
    56,220.92x = 84,340.02 × 18,769.40
  4. Step 4: Simplify right side
    56,220.92x = 1,583,011,571.39
  5. Step 5: Solve for x
    x = 1,583,011,571.39/56,220.92
  6. Step 6: Final answer
    x = 28,156.98

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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.