Home / 89,403.04-123,378.26-49,119.32

Finding the Fourth Proportional to 89,403.04, 123,378.26 and 49,119.32

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Solution

The fourth proportional to 89,403.04, 123,378.26 and 49,119.32 is: 67,785.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,403.04 : 123,378.26 = 49,119.32 : x
  2. Step 2: Convert to fraction form
    89,403.04/123,378.26 = 49,119.32/x
  3. Step 3: Cross multiply
    89,403.04x = 123,378.26 × 49,119.32
  4. Step 4: Simplify right side
    89,403.04x = 6,060,256,233.98
  5. Step 5: Solve for x
    x = 6,060,256,233.98/89,403.04
  6. Step 6: Final answer
    x = 67,785.80

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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.