Home / 89,990.90-124,186.70-49,155.05

Finding the Fourth Proportional to 89,990.90, 124,186.70 and 49,155.05

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Solution

The fourth proportional to 89,990.90, 124,186.70 and 49,155.05 is: 67,833.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,990.90 : 124,186.70 = 49,155.05 : x
  2. Step 2: Convert to fraction form
    89,990.90/124,186.70 = 49,155.05/x
  3. Step 3: Cross multiply
    89,990.90x = 124,186.70 × 49,155.05
  4. Step 4: Simplify right side
    89,990.90x = 6,104,402,581.13
  5. Step 5: Solve for x
    x = 6,104,402,581.13/89,990.90
  6. Step 6: Final answer
    x = 67,833.56

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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.