Home / 90,329,573.75-124,654,811.76-51,171,350.49

Finding the Fourth Proportional to 90,329,573.75, 124,654,811.76 and 51,171,350.49

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Solution

The fourth proportional to 90,329,573.75, 124,654,811.76 and 51,171,350.49 is: 70,616,463.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,329,573.75 : 124,654,811.76 = 51,171,350.49 : x
  2. Step 2: Convert to fraction form
    90,329,573.75/124,654,811.76 = 51,171,350.49/x
  3. Step 3: Cross multiply
    90,329,573.75x = 124,654,811.76 × 51,171,350.49
  4. Step 4: Simplify right side
    90,329,573.75x = 6,378,755,062,835,934
  5. Step 5: Solve for x
    x = 6,378,755,062,835,934/90,329,573.75
  6. Step 6: Final answer
    x = 70,616,463.67

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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.