Home / 79,488.32-109,694.40-43,681.28

Finding the Fourth Proportional to 79,488.32, 109,694.40 and 43,681.28

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Solution

The fourth proportional to 79,488.32, 109,694.40 and 43,681.28 is: 60,280.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,488.32 : 109,694.40 = 43,681.28 : x
  2. Step 2: Convert to fraction form
    79,488.32/109,694.40 = 43,681.28/x
  3. Step 3: Cross multiply
    79,488.32x = 109,694.40 × 43,681.28
  4. Step 4: Simplify right side
    79,488.32x = 4,791,591,800.83
  5. Step 5: Solve for x
    x = 4,791,591,800.83/79,488.32
  6. Step 6: Final answer
    x = 60,280.45

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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.