Home / 72,823.10-109,277.09-30,700.61

Finding the Fourth Proportional to 72,823.10, 109,277.09 and 30,700.61

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Solution

The fourth proportional to 72,823.10, 109,277.09 and 30,700.61 is: 46,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,823.10 : 109,277.09 = 30,700.61 : x
  2. Step 2: Convert to fraction form
    72,823.10/109,277.09 = 30,700.61/x
  3. Step 3: Cross multiply
    72,823.10x = 109,277.09 × 30,700.61
  4. Step 4: Simplify right side
    72,823.10x = 3,354,872,852.39
  5. Step 5: Solve for x
    x = 3,354,872,852.39/72,823.10
  6. Step 6: Final answer
    x = 46,068.80

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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.