Home / 90,525.04-135,785.49-53,321.11

Finding the Fourth Proportional to 90,525.04, 135,785.49 and 53,321.11

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Solution

The fourth proportional to 90,525.04, 135,785.49 and 53,321.11 is: 79,980.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,525.04 : 135,785.49 = 53,321.11 : x
  2. Step 2: Convert to fraction form
    90,525.04/135,785.49 = 53,321.11/x
  3. Step 3: Cross multiply
    90,525.04x = 135,785.49 × 53,321.11
  4. Step 4: Simplify right side
    90,525.04x = 7,240,233,048.69
  5. Step 5: Solve for x
    x = 7,240,233,048.69/90,525.04
  6. Step 6: Final answer
    x = 79,980.45

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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.