Home / 90,648.24-135,730.44-53,177.52

Finding the Fourth Proportional to 90,648.24, 135,730.44 and 53,177.52

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Solution

The fourth proportional to 90,648.24, 135,730.44 and 53,177.52 is: 79,624.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,648.24 : 135,730.44 = 53,177.52 : x
  2. Step 2: Convert to fraction form
    90,648.24/135,730.44 = 53,177.52/x
  3. Step 3: Cross multiply
    90,648.24x = 135,730.44 × 53,177.52
  4. Step 4: Simplify right side
    90,648.24x = 7,217,808,187.71
  5. Step 5: Solve for x
    x = 7,217,808,187.71/90,648.24
  6. Step 6: Final answer
    x = 79,624.36

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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.