Home / 63,207.57-87,243.21-39,320.67

Finding the Fourth Proportional to 63,207.57, 87,243.21 and 39,320.67

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Solution

The fourth proportional to 63,207.57, 87,243.21 and 39,320.67 is: 54,272.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,207.57 : 87,243.21 = 39,320.67 : x
  2. Step 2: Convert to fraction form
    63,207.57/87,243.21 = 39,320.67/x
  3. Step 3: Cross multiply
    63,207.57x = 87,243.21 × 39,320.67
  4. Step 4: Simplify right side
    63,207.57x = 3,430,461,470.15
  5. Step 5: Solve for x
    x = 3,430,461,470.15/63,207.57
  6. Step 6: Final answer
    x = 54,272.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.