Home / 89,914.90-124,083-49,628.74

Finding the Fourth Proportional to 89,914.90, 124,083 and 49,628.74

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Solution

The fourth proportional to 89,914.90, 124,083 and 49,628.74 is: 68,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,914.90 : 124,083 = 49,628.74 : x
  2. Step 2: Convert to fraction form
    89,914.90/124,083 = 49,628.74/x
  3. Step 3: Cross multiply
    89,914.90x = 124,083 × 49,628.74
  4. Step 4: Simplify right side
    89,914.90x = 6,158,082,945.42
  5. Step 5: Solve for x
    x = 6,158,082,945.42/89,914.90
  6. Step 6: Final answer
    x = 68,487.90

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1.5x scale

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.