Home / 77,025.64-115,329.74-40,011.88

Finding the Fourth Proportional to 77,025.64, 115,329.74 and 40,011.88

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Solution

The fourth proportional to 77,025.64, 115,329.74 and 40,011.88 is: 59,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,025.64 : 115,329.74 = 40,011.88 : x
  2. Step 2: Convert to fraction form
    77,025.64/115,329.74 = 40,011.88/x
  3. Step 3: Cross multiply
    77,025.64x = 115,329.74 × 40,011.88
  4. Step 4: Simplify right side
    77,025.64x = 4,614,559,717.31
  5. Step 5: Solve for x
    x = 4,614,559,717.31/77,025.64
  6. Step 6: Final answer
    x = 59,909.40

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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.