Home / 53,919.71-80,875.62-18,378.08

Finding the Fourth Proportional to 53,919.71, 80,875.62 and 18,378.08

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Solution

The fourth proportional to 53,919.71, 80,875.62 and 18,378.08 is: 27,565.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,919.71 : 80,875.62 = 18,378.08 : x
  2. Step 2: Convert to fraction form
    53,919.71/80,875.62 = 18,378.08/x
  3. Step 3: Cross multiply
    53,919.71x = 80,875.62 × 18,378.08
  4. Step 4: Simplify right side
    53,919.71x = 1,486,338,210.03
  5. Step 5: Solve for x
    x = 1,486,338,210.03/53,919.71
  6. Step 6: Final answer
    x = 27,565.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.