Home / 105,057.60-144,979.48-57,311.14

Finding the Fourth Proportional to 105,057.60, 144,979.48 and 57,311.14

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Solution

The fourth proportional to 105,057.60, 144,979.48 and 57,311.14 is: 79,089.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,057.60 : 144,979.48 = 57,311.14 : x
  2. Step 2: Convert to fraction form
    105,057.60/144,979.48 = 57,311.14/x
  3. Step 3: Cross multiply
    105,057.60x = 144,979.48 × 57,311.14
  4. Step 4: Simplify right side
    105,057.60x = 8,308,939,275.41
  5. Step 5: Solve for x
    x = 8,308,939,275.41/105,057.60
  6. Step 6: Final answer
    x = 79,089.37

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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.