Home / 89,785.95-123,905.48-49,501.28

Finding the Fourth Proportional to 89,785.95, 123,905.48 and 49,501.28

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Solution

The fourth proportional to 89,785.95, 123,905.48 and 49,501.28 is: 68,312.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,785.95 : 123,905.48 = 49,501.28 : x
  2. Step 2: Convert to fraction form
    89,785.95/123,905.48 = 49,501.28/x
  3. Step 3: Cross multiply
    89,785.95x = 123,905.48 × 49,501.28
  4. Step 4: Simplify right side
    89,785.95x = 6,133,478,991.98
  5. Step 5: Solve for x
    x = 6,133,478,991.98/89,785.95
  6. Step 6: Final answer
    x = 68,312.24

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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.