Home / 87,164.74-120,263.43-53,178.76

Finding the Fourth Proportional to 87,164.74, 120,263.43 and 53,178.76

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Solution

The fourth proportional to 87,164.74, 120,263.43 and 53,178.76 is: 73,372.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,164.74 : 120,263.43 = 53,178.76 : x
  2. Step 2: Convert to fraction form
    87,164.74/120,263.43 = 53,178.76/x
  3. Step 3: Cross multiply
    87,164.74x = 120,263.43 × 53,178.76
  4. Step 4: Simplify right side
    87,164.74x = 6,395,460,080.75
  5. Step 5: Solve for x
    x = 6,395,460,080.75/87,164.74
  6. Step 6: Final answer
    x = 73,372.10

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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.