Home / 90,047.23-124,272.66-49,768.86

Finding the Fourth Proportional to 90,047.23, 124,272.66 and 49,768.86

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Solution

The fourth proportional to 90,047.23, 124,272.66 and 49,768.86 is: 68,685.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,047.23 : 124,272.66 = 49,768.86 : x
  2. Step 2: Convert to fraction form
    90,047.23/124,272.66 = 49,768.86/x
  3. Step 3: Cross multiply
    90,047.23x = 124,272.66 × 49,768.86
  4. Step 4: Simplify right side
    90,047.23x = 6,184,908,617.37
  5. Step 5: Solve for x
    x = 6,184,908,617.37/90,047.23
  6. Step 6: Final answer
    x = 68,685.16

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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.