Home / 77,389.59-106,758.31-50,547.81

Finding the Fourth Proportional to 77,389.59, 106,758.31 and 50,547.81

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Solution

The fourth proportional to 77,389.59, 106,758.31 and 50,547.81 is: 69,730.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,389.59 : 106,758.31 = 50,547.81 : x
  2. Step 2: Convert to fraction form
    77,389.59/106,758.31 = 50,547.81/x
  3. Step 3: Cross multiply
    77,389.59x = 106,758.31 × 50,547.81
  4. Step 4: Simplify right side
    77,389.59x = 5,396,398,769.80
  5. Step 5: Solve for x
    x = 5,396,398,769.80/77,389.59
  6. Step 6: Final answer
    x = 69,730.29

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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.