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Finding the Fourth Proportional to 61,348, 92,043.60 and 30,205.12

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Solution

The fourth proportional to 61,348, 92,043.60 and 30,205.12 is: 45,318.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,348 : 92,043.60 = 30,205.12 : x
  2. Step 2: Convert to fraction form
    61,348/92,043.60 = 30,205.12/x
  3. Step 3: Cross multiply
    61,348x = 92,043.60 × 30,205.12
  4. Step 4: Simplify right side
    61,348x = 2,780,187,983.23
  5. Step 5: Solve for x
    x = 2,780,187,983.23/61,348
  6. Step 6: Final answer
    x = 45,318.31

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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.