Home / 77,077.56-115,507.68-36,508.02

Finding the Fourth Proportional to 77,077.56, 115,507.68 and 36,508.02

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Solution

The fourth proportional to 77,077.56, 115,507.68 and 36,508.02 is: 54,710.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,077.56 : 115,507.68 = 36,508.02 : x
  2. Step 2: Convert to fraction form
    77,077.56/115,507.68 = 36,508.02/x
  3. Step 3: Cross multiply
    77,077.56x = 115,507.68 × 36,508.02
  4. Step 4: Simplify right side
    77,077.56x = 4,216,956,691.59
  5. Step 5: Solve for x
    x = 4,216,956,691.59/77,077.56
  6. Step 6: Final answer
    x = 54,710.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.