Home / 53,381.09-73,658.35-30,711.44

Finding the Fourth Proportional to 53,381.09, 73,658.35 and 30,711.44

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Solution

The fourth proportional to 53,381.09, 73,658.35 and 30,711.44 is: 42,377.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,381.09 : 73,658.35 = 30,711.44 : x
  2. Step 2: Convert to fraction form
    53,381.09/73,658.35 = 30,711.44/x
  3. Step 3: Cross multiply
    53,381.09x = 73,658.35 × 30,711.44
  4. Step 4: Simplify right side
    53,381.09x = 2,262,153,996.52
  5. Step 5: Solve for x
    x = 2,262,153,996.52/53,381.09
  6. Step 6: Final answer
    x = 42,377.44

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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.