Home / 55,045.58-75,962.71-31,172.65

Finding the Fourth Proportional to 55,045.58, 75,962.71 and 31,172.65

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Solution

The fourth proportional to 55,045.58, 75,962.71 and 31,172.65 is: 43,018.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,045.58 : 75,962.71 = 31,172.65 : x
  2. Step 2: Convert to fraction form
    55,045.58/75,962.71 = 31,172.65/x
  3. Step 3: Cross multiply
    55,045.58x = 75,962.71 × 31,172.65
  4. Step 4: Simplify right side
    55,045.58x = 2,367,958,820.94
  5. Step 5: Solve for x
    x = 2,367,958,820.94/55,045.58
  6. Step 6: Final answer
    x = 43,018.15

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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.