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Finding the Fourth Proportional to 55,479.29, 76,542.71 and 31,589.08

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Solution

The fourth proportional to 55,479.29, 76,542.71 and 31,589.08 is: 43,582.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,479.29 : 76,542.71 = 31,589.08 : x
  2. Step 2: Convert to fraction form
    55,479.29/76,542.71 = 31,589.08/x
  3. Step 3: Cross multiply
    55,479.29x = 76,542.71 × 31,589.08
  4. Step 4: Simplify right side
    55,479.29x = 2,417,913,440.30
  5. Step 5: Solve for x
    x = 2,417,913,440.30/55,479.29
  6. Step 6: Final answer
    x = 43,582.27

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1.5x scale

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.