Home / 90,981.63-136,472.45-35,538.75

Finding the Fourth Proportional to 90,981.63, 136,472.45 and 35,538.75

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Solution

The fourth proportional to 90,981.63, 136,472.45 and 35,538.75 is: 53,308.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,981.63 : 136,472.45 = 35,538.75 : x
  2. Step 2: Convert to fraction form
    90,981.63/136,472.45 = 35,538.75/x
  3. Step 3: Cross multiply
    90,981.63x = 136,472.45 × 35,538.75
  4. Step 4: Simplify right side
    90,981.63x = 4,850,060,104.74
  5. Step 5: Solve for x
    x = 4,850,060,104.74/90,981.63
  6. Step 6: Final answer
    x = 53,308.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.