Home / 55,479.79-76,543.41-31,589.56

Finding the Fourth Proportional to 55,479.79, 76,543.41 and 31,589.56

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Solution

The fourth proportional to 55,479.79, 76,543.41 and 31,589.56 is: 43,582.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,479.79 : 76,543.41 = 31,589.56 : x
  2. Step 2: Convert to fraction form
    55,479.79/76,543.41 = 31,589.56/x
  3. Step 3: Cross multiply
    55,479.79x = 76,543.41 × 31,589.56
  4. Step 4: Simplify right side
    55,479.79x = 2,417,972,642.80
  5. Step 5: Solve for x
    x = 2,417,972,642.80/55,479.79
  6. Step 6: Final answer
    x = 43,582.95

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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.