Home / 77,152.16-115,794.04-30,437.84

Finding the Fourth Proportional to 77,152.16, 115,794.04 and 30,437.84

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Solution

The fourth proportional to 77,152.16, 115,794.04 and 30,437.84 is: 45,682.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,152.16 : 115,794.04 = 30,437.84 : x
  2. Step 2: Convert to fraction form
    77,152.16/115,794.04 = 30,437.84/x
  3. Step 3: Cross multiply
    77,152.16x = 115,794.04 × 30,437.84
  4. Step 4: Simplify right side
    77,152.16x = 3,524,520,462.47
  5. Step 5: Solve for x
    x = 3,524,520,462.47/77,152.16
  6. Step 6: Final answer
    x = 45,682.72

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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.