Home / 78,767.08-108,637.14-50,475.40

Finding the Fourth Proportional to 78,767.08, 108,637.14 and 50,475.40

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Solution

The fourth proportional to 78,767.08, 108,637.14 and 50,475.40 is: 69,616.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,767.08 : 108,637.14 = 50,475.40 : x
  2. Step 2: Convert to fraction form
    78,767.08/108,637.14 = 50,475.40/x
  3. Step 3: Cross multiply
    78,767.08x = 108,637.14 × 50,475.40
  4. Step 4: Simplify right side
    78,767.08x = 5,483,503,096.36
  5. Step 5: Solve for x
    x = 5,483,503,096.36/78,767.08
  6. Step 6: Final answer
    x = 69,616.69

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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.