Home / 54,913.55-75,777.73-31,038.80

Finding the Fourth Proportional to 54,913.55, 75,777.73 and 31,038.80

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Solution

The fourth proportional to 54,913.55, 75,777.73 and 31,038.80 is: 42,831.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,913.55 : 75,777.73 = 31,038.80 : x
  2. Step 2: Convert to fraction form
    54,913.55/75,777.73 = 31,038.80/x
  3. Step 3: Cross multiply
    54,913.55x = 75,777.73 × 31,038.80
  4. Step 4: Simplify right side
    54,913.55x = 2,352,049,349.44
  5. Step 5: Solve for x
    x = 2,352,049,349.44/54,913.55
  6. Step 6: Final answer
    x = 42,831.86

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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.