Home / 42,139.80-63,250.65-32,880.60

Finding the Fourth Proportional to 42,139.80, 63,250.65 and 32,880.60

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Solution

The fourth proportional to 42,139.80, 63,250.65 and 32,880.60 is: 49,352.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,139.80 : 63,250.65 = 32,880.60 : x
  2. Step 2: Convert to fraction form
    42,139.80/63,250.65 = 32,880.60/x
  3. Step 3: Cross multiply
    42,139.80x = 63,250.65 × 32,880.60
  4. Step 4: Simplify right side
    42,139.80x = 2,079,719,322.39
  5. Step 5: Solve for x
    x = 2,079,719,322.39/42,139.80
  6. Step 6: Final answer
    x = 49,352.85

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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.