Home / 89,381.66-123,356.86-57,117.94

Finding the Fourth Proportional to 89,381.66, 123,356.86 and 57,117.94

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Solution

The fourth proportional to 89,381.66, 123,356.86 and 57,117.94 is: 78,829.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,381.66 : 123,356.86 = 57,117.94 : x
  2. Step 2: Convert to fraction form
    89,381.66/123,356.86 = 57,117.94/x
  3. Step 3: Cross multiply
    89,381.66x = 123,356.86 × 57,117.94
  4. Step 4: Simplify right side
    89,381.66x = 7,045,889,728.07
  5. Step 5: Solve for x
    x = 7,045,889,728.07/89,381.66
  6. Step 6: Final answer
    x = 78,829.26

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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.