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Finding the Fourth Proportional to 55,600.61, 76,728.70 and 30,107.00

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Solution

The fourth proportional to 55,600.61, 76,728.70 and 30,107.00 is: 41,547.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,600.61 : 76,728.70 = 30,107.00 : x
  2. Step 2: Convert to fraction form
    55,600.61/76,728.70 = 30,107.00/x
  3. Step 3: Cross multiply
    55,600.61x = 76,728.70 × 30,107.00
  4. Step 4: Simplify right side
    55,600.61x = 2,310,070,511.99
  5. Step 5: Solve for x
    x = 2,310,070,511.99/55,600.61
  6. Step 6: Final answer
    x = 41,547.58

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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.