Home / 41,987.08-57,894.10-31,358.76

Finding the Fourth Proportional to 41,987.08, 57,894.10 and 31,358.76

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Solution

The fourth proportional to 41,987.08, 57,894.10 and 31,358.76 is: 43,239.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,987.08 : 57,894.10 = 31,358.76 : x
  2. Step 2: Convert to fraction form
    41,987.08/57,894.10 = 31,358.76/x
  3. Step 3: Cross multiply
    41,987.08x = 57,894.10 × 31,358.76
  4. Step 4: Simplify right side
    41,987.08x = 1,815,487,187.32
  5. Step 5: Solve for x
    x = 1,815,487,187.32/41,987.08
  6. Step 6: Final answer
    x = 43,239.19

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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.