Home / 87,751.64-121,096.80-47,465.28

Finding the Fourth Proportional to 87,751.64, 121,096.80 and 47,465.28

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Solution

The fourth proportional to 87,751.64, 121,096.80 and 47,465.28 is: 65,501.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,751.64 : 121,096.80 = 47,465.28 : x
  2. Step 2: Convert to fraction form
    87,751.64/121,096.80 = 47,465.28/x
  3. Step 3: Cross multiply
    87,751.64x = 121,096.80 × 47,465.28
  4. Step 4: Simplify right side
    87,751.64x = 5,747,893,519.10
  5. Step 5: Solve for x
    x = 5,747,893,519.10/87,751.64
  6. Step 6: Final answer
    x = 65,501.84

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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.