Home / 54,925.12-75,778.80-31,049.44

Finding the Fourth Proportional to 54,925.12, 75,778.80 and 31,049.44

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Solution

The fourth proportional to 54,925.12, 75,778.80 and 31,049.44 is: 42,838.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,925.12 : 75,778.80 = 31,049.44 : x
  2. Step 2: Convert to fraction form
    54,925.12/75,778.80 = 31,049.44/x
  3. Step 3: Cross multiply
    54,925.12x = 75,778.80 × 31,049.44
  4. Step 4: Simplify right side
    54,925.12x = 2,352,889,303.87
  5. Step 5: Solve for x
    x = 2,352,889,303.87/54,925.12
  6. Step 6: Final answer
    x = 42,838.13

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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.