Home / 77,520.96-116,264.16-30,761.28

Finding the Fourth Proportional to 77,520.96, 116,264.16 and 30,761.28

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Solution

The fourth proportional to 77,520.96, 116,264.16 and 30,761.28 is: 46,135.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,520.96 : 116,264.16 = 30,761.28 : x
  2. Step 2: Convert to fraction form
    77,520.96/116,264.16 = 30,761.28/x
  3. Step 3: Cross multiply
    77,520.96x = 116,264.16 × 30,761.28
  4. Step 4: Simplify right side
    77,520.96x = 3,576,434,379.72
  5. Step 5: Solve for x
    x = 3,576,434,379.72/77,520.96
  6. Step 6: Final answer
    x = 46,135.06

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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.