Home / 87,783.81-121,140.76-47,496.67

Finding the Fourth Proportional to 87,783.81, 121,140.76 and 47,496.67

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Solution

The fourth proportional to 87,783.81, 121,140.76 and 47,496.67 is: 65,544.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,783.81 : 121,140.76 = 47,496.67 : x
  2. Step 2: Convert to fraction form
    87,783.81/121,140.76 = 47,496.67/x
  3. Step 3: Cross multiply
    87,783.81x = 121,140.76 × 47,496.67
  4. Step 4: Simplify right side
    87,783.81x = 5,753,782,701.27
  5. Step 5: Solve for x
    x = 5,753,782,701.27/87,783.81
  6. Step 6: Final answer
    x = 65,544.92

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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.