Home / 89,999.16-134,998.47-49,999.38

Finding the Fourth Proportional to 89,999.16, 134,998.47 and 49,999.38

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Solution

The fourth proportional to 89,999.16, 134,998.47 and 49,999.38 is: 74,998.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,999.16 : 134,998.47 = 49,999.38 : x
  2. Step 2: Convert to fraction form
    89,999.16/134,998.47 = 49,999.38/x
  3. Step 3: Cross multiply
    89,999.16x = 134,998.47 × 49,999.38
  4. Step 4: Simplify right side
    89,999.16x = 6,749,839,800.95
  5. Step 5: Solve for x
    x = 6,749,839,800.95/89,999.16
  6. Step 6: Final answer
    x = 74,998.92

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1.5x scale

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.