Home / 56,043.20-77,340.13-30,893.60

Finding the Fourth Proportional to 56,043.20, 77,340.13 and 30,893.60

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Solution

The fourth proportional to 56,043.20, 77,340.13 and 30,893.60 is: 42,633.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,043.20 : 77,340.13 = 30,893.60 : x
  2. Step 2: Convert to fraction form
    56,043.20/77,340.13 = 30,893.60/x
  3. Step 3: Cross multiply
    56,043.20x = 77,340.13 × 30,893.60
  4. Step 4: Simplify right side
    56,043.20x = 2,389,314,576.23
  5. Step 5: Solve for x
    x = 2,389,314,576.23/56,043.20
  6. Step 6: Final answer
    x = 42,633.45

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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.