Home / 90,567.54-135,831.87-56,817.30

Finding the Fourth Proportional to 90,567.54, 135,831.87 and 56,817.30

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Solution

The fourth proportional to 90,567.54, 135,831.87 and 56,817.30 is: 85,213.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,567.54 : 135,831.87 = 56,817.30 : x
  2. Step 2: Convert to fraction form
    90,567.54/135,831.87 = 56,817.30/x
  3. Step 3: Cross multiply
    90,567.54x = 135,831.87 × 56,817.30
  4. Step 4: Simplify right side
    90,567.54x = 7,717,600,107.35
  5. Step 5: Solve for x
    x = 7,717,600,107.35/90,567.54
  6. Step 6: Final answer
    x = 85,213.75

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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.