Home / 87,796.59-121,138.20-53,340.63

Finding the Fourth Proportional to 87,796.59, 121,138.20 and 53,340.63

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Solution

The fourth proportional to 87,796.59, 121,138.20 and 53,340.63 is: 73,597.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,796.59 : 121,138.20 = 53,340.63 : x
  2. Step 2: Convert to fraction form
    87,796.59/121,138.20 = 53,340.63/x
  3. Step 3: Cross multiply
    87,796.59x = 121,138.20 × 53,340.63
  4. Step 4: Simplify right side
    87,796.59x = 6,461,587,905.07
  5. Step 5: Solve for x
    x = 6,461,587,905.07/87,796.59
  6. Step 6: Final answer
    x = 73,597.25

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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.