Home / 87,495.24-120,742.38-49,769.40

Finding the Fourth Proportional to 87,495.24, 120,742.38 and 49,769.40

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Solution

The fourth proportional to 87,495.24, 120,742.38 and 49,769.40 is: 68,681.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,495.24 : 120,742.38 = 49,769.40 : x
  2. Step 2: Convert to fraction form
    87,495.24/120,742.38 = 49,769.40/x
  3. Step 3: Cross multiply
    87,495.24x = 120,742.38 × 49,769.40
  4. Step 4: Simplify right side
    87,495.24x = 6,009,275,807.17
  5. Step 5: Solve for x
    x = 6,009,275,807.17/87,495.24
  6. Step 6: Final answer
    x = 68,681.17

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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.