Home / 95,979.90-143,775.45-54,378.30

Finding the Fourth Proportional to 95,979.90, 143,775.45 and 54,378.30

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Solution

The fourth proportional to 95,979.90, 143,775.45 and 54,378.30 is: 81,457.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,979.90 : 143,775.45 = 54,378.30 : x
  2. Step 2: Convert to fraction form
    95,979.90/143,775.45 = 54,378.30/x
  3. Step 3: Cross multiply
    95,979.90x = 143,775.45 × 54,378.30
  4. Step 4: Simplify right side
    95,979.90x = 7,818,264,552.74
  5. Step 5: Solve for x
    x = 7,818,264,552.74/95,979.90
  6. Step 6: Final answer
    x = 81,457.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.