Home / 99,021.57-148,529.88-28,901.49

Finding the Fourth Proportional to 99,021.57, 148,529.88 and 28,901.49

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Solution

The fourth proportional to 99,021.57, 148,529.88 and 28,901.49 is: 43,351.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,021.57 : 148,529.88 = 28,901.49 : x
  2. Step 2: Convert to fraction form
    99,021.57/148,529.88 = 28,901.49/x
  3. Step 3: Cross multiply
    99,021.57x = 148,529.88 × 28,901.49
  4. Step 4: Simplify right side
    99,021.57x = 4,292,734,841.52
  5. Step 5: Solve for x
    x = 4,292,734,841.52/99,021.57
  6. Step 6: Final answer
    x = 43,351.51

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1.5x scale

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.