Home / 98,215.19-135,530.58-57,919.72

Finding the Fourth Proportional to 98,215.19, 135,530.58 and 57,919.72

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Solution

The fourth proportional to 98,215.19, 135,530.58 and 57,919.72 is: 79,925.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,215.19 : 135,530.58 = 57,919.72 : x
  2. Step 2: Convert to fraction form
    98,215.19/135,530.58 = 57,919.72/x
  3. Step 3: Cross multiply
    98,215.19x = 135,530.58 × 57,919.72
  4. Step 4: Simplify right side
    98,215.19x = 7,849,892,567.38
  5. Step 5: Solve for x
    x = 7,849,892,567.38/98,215.19
  6. Step 6: Final answer
    x = 79,925.44

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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.