Home / 76,455.16-105,516.51-43,752.61

Finding the Fourth Proportional to 76,455.16, 105,516.51 and 43,752.61

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Solution

The fourth proportional to 76,455.16, 105,516.51 and 43,752.61 is: 60,383.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,455.16 : 105,516.51 = 43,752.61 : x
  2. Step 2: Convert to fraction form
    76,455.16/105,516.51 = 43,752.61/x
  3. Step 3: Cross multiply
    76,455.16x = 105,516.51 × 43,752.61
  4. Step 4: Simplify right side
    76,455.16x = 4,616,622,084.88
  5. Step 5: Solve for x
    x = 4,616,622,084.88/76,455.16
  6. Step 6: Final answer
    x = 60,383.40

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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.