Home / 87,821.60-121,193.67-47,535.32

Finding the Fourth Proportional to 87,821.60, 121,193.67 and 47,535.32

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Solution

The fourth proportional to 87,821.60, 121,193.67 and 47,535.32 is: 65,598.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,821.60 : 121,193.67 = 47,535.32 : x
  2. Step 2: Convert to fraction form
    87,821.60/121,193.67 = 47,535.32/x
  3. Step 3: Cross multiply
    87,821.60x = 121,193.67 × 47,535.32
  4. Step 4: Simplify right side
    87,821.60x = 5,760,979,885.42
  5. Step 5: Solve for x
    x = 5,760,979,885.42/87,821.60
  6. Step 6: Final answer
    x = 65,598.67

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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.