Home / 90,949.77-136,378.91-53,011.23

Finding the Fourth Proportional to 90,949.77, 136,378.91 and 53,011.23

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Solution

The fourth proportional to 90,949.77, 136,378.91 and 53,011.23 is: 79,490.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,949.77 : 136,378.91 = 53,011.23 : x
  2. Step 2: Convert to fraction form
    90,949.77/136,378.91 = 53,011.23/x
  3. Step 3: Cross multiply
    90,949.77x = 136,378.91 × 53,011.23
  4. Step 4: Simplify right side
    90,949.77x = 7,229,613,500.10
  5. Step 5: Solve for x
    x = 7,229,613,500.10/90,949.77
  6. Step 6: Final answer
    x = 79,490.18

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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.