Home / 75,378.65-104,001.30-48,536.69

Finding the Fourth Proportional to 75,378.65, 104,001.30 and 48,536.69

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Solution

The fourth proportional to 75,378.65, 104,001.30 and 48,536.69 is: 66,966.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,378.65 : 104,001.30 = 48,536.69 : x
  2. Step 2: Convert to fraction form
    75,378.65/104,001.30 = 48,536.69/x
  3. Step 3: Cross multiply
    75,378.65x = 104,001.30 × 48,536.69
  4. Step 4: Simplify right side
    75,378.65x = 5,047,878,337.69
  5. Step 5: Solve for x
    x = 5,047,878,337.69/75,378.65
  6. Step 6: Final answer
    x = 66,966.96

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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.