Home / 90,488.41-135,732.65-31,291.79

Finding the Fourth Proportional to 90,488.41, 135,732.65 and 31,291.79

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Solution

The fourth proportional to 90,488.41, 135,732.65 and 31,291.79 is: 46,937.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,488.41 : 135,732.65 = 31,291.79 : x
  2. Step 2: Convert to fraction form
    90,488.41/135,732.65 = 31,291.79/x
  3. Step 3: Cross multiply
    90,488.41x = 135,732.65 × 31,291.79
  4. Step 4: Simplify right side
    90,488.41x = 4,247,316,744.82
  5. Step 5: Solve for x
    x = 4,247,316,744.82/90,488.41
  6. Step 6: Final answer
    x = 46,937.69

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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.