Home / 99,652.94-137,504.14-57,210.56

Finding the Fourth Proportional to 99,652.94, 137,504.14 and 57,210.56

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Solution

The fourth proportional to 99,652.94, 137,504.14 and 57,210.56 is: 78,940.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,652.94 : 137,504.14 = 57,210.56 : x
  2. Step 2: Convert to fraction form
    99,652.94/137,504.14 = 57,210.56/x
  3. Step 3: Cross multiply
    99,652.94x = 137,504.14 × 57,210.56
  4. Step 4: Simplify right side
    99,652.94x = 7,866,688,021.17
  5. Step 5: Solve for x
    x = 7,866,688,021.17/99,652.94
  6. Step 6: Final answer
    x = 78,940.86

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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.