Home / 89,901.49-124,110.68-65,675.24

Finding the Fourth Proportional to 89,901.49, 124,110.68 and 65,675.24

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Solution

The fourth proportional to 89,901.49, 124,110.68 and 65,675.24 is: 90,665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,901.49 : 124,110.68 = 65,675.24 : x
  2. Step 2: Convert to fraction form
    89,901.49/124,110.68 = 65,675.24/x
  3. Step 3: Cross multiply
    89,901.49x = 124,110.68 × 65,675.24
  4. Step 4: Simplify right side
    89,901.49x = 8,150,999,170.03
  5. Step 5: Solve for x
    x = 8,150,999,170.03/89,901.49
  6. Step 6: Final answer
    x = 90,665.90

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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.