Home / 98,488.28-135,912.04-56,045.88

Finding the Fourth Proportional to 98,488.28, 135,912.04 and 56,045.88

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Solution

The fourth proportional to 98,488.28, 135,912.04 and 56,045.88 is: 77,342.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,488.28 : 135,912.04 = 56,045.88 : x
  2. Step 2: Convert to fraction form
    98,488.28/135,912.04 = 56,045.88/x
  3. Step 3: Cross multiply
    98,488.28x = 135,912.04 × 56,045.88
  4. Step 4: Simplify right side
    98,488.28x = 7,617,309,884.40
  5. Step 5: Solve for x
    x = 7,617,309,884.40/98,488.28
  6. Step 6: Final answer
    x = 77,342.30

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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.