Home / 78,839.58-108,798.92-43,030.38

Finding the Fourth Proportional to 78,839.58, 108,798.92 and 43,030.38

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Solution

The fourth proportional to 78,839.58, 108,798.92 and 43,030.38 is: 59,382.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,839.58 : 108,798.92 = 43,030.38 : x
  2. Step 2: Convert to fraction form
    78,839.58/108,798.92 = 43,030.38/x
  3. Step 3: Cross multiply
    78,839.58x = 108,798.92 × 43,030.38
  4. Step 4: Simplify right side
    78,839.58x = 4,681,658,871.19
  5. Step 5: Solve for x
    x = 4,681,658,871.19/78,839.58
  6. Step 6: Final answer
    x = 59,382.09

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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.