Home / 73,178.10-100,948.79-48,980.07

Finding the Fourth Proportional to 73,178.10, 100,948.79 and 48,980.07

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Solution

The fourth proportional to 73,178.10, 100,948.79 and 48,980.07 is: 67,567.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,178.10 : 100,948.79 = 48,980.07 : x
  2. Step 2: Convert to fraction form
    73,178.10/100,948.79 = 48,980.07/x
  3. Step 3: Cross multiply
    73,178.10x = 100,948.79 × 48,980.07
  4. Step 4: Simplify right side
    73,178.10x = 4,944,478,991.76
  5. Step 5: Solve for x
    x = 4,944,478,991.76/73,178.10
  6. Step 6: Final answer
    x = 67,567.74

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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.