Home / 54,982.74-75,878.58-31,108.80

Finding the Fourth Proportional to 54,982.74, 75,878.58 and 31,108.80

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Solution

The fourth proportional to 54,982.74, 75,878.58 and 31,108.80 is: 42,931.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,982.74 : 75,878.58 = 31,108.80 : x
  2. Step 2: Convert to fraction form
    54,982.74/75,878.58 = 31,108.80/x
  3. Step 3: Cross multiply
    54,982.74x = 75,878.58 × 31,108.80
  4. Step 4: Simplify right side
    54,982.74x = 2,360,491,569.50
  5. Step 5: Solve for x
    x = 2,360,491,569.50/54,982.74
  6. Step 6: Final answer
    x = 42,931.50

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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.