Home / 90,459.27-135,669.81-58,342.14

Finding the Fourth Proportional to 90,459.27, 135,669.81 and 58,342.14

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Solution

The fourth proportional to 90,459.27, 135,669.81 and 58,342.14 is: 87,500.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,459.27 : 135,669.81 = 58,342.14 : x
  2. Step 2: Convert to fraction form
    90,459.27/135,669.81 = 58,342.14/x
  3. Step 3: Cross multiply
    90,459.27x = 135,669.81 × 58,342.14
  4. Step 4: Simplify right side
    90,459.27x = 7,915,267,048.79
  5. Step 5: Solve for x
    x = 7,915,267,048.79/90,459.27
  6. Step 6: Final answer
    x = 87,500.89

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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.