Home / 90,951.38-125,512.91-53,225.63

Finding the Fourth Proportional to 90,951.38, 125,512.91 and 53,225.63

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Solution

The fourth proportional to 90,951.38, 125,512.91 and 53,225.63 is: 73,451.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,951.38 : 125,512.91 = 53,225.63 : x
  2. Step 2: Convert to fraction form
    90,951.38/125,512.91 = 53,225.63/x
  3. Step 3: Cross multiply
    90,951.38x = 125,512.91 × 53,225.63
  4. Step 4: Simplify right side
    90,951.38x = 6,680,502,814.19
  5. Step 5: Solve for x
    x = 6,680,502,814.19/90,951.38
  6. Step 6: Final answer
    x = 73,451.37

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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.