Home / 55,079.57-76,009.62-31,210.80

Finding the Fourth Proportional to 55,079.57, 76,009.62 and 31,210.80

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Solution

The fourth proportional to 55,079.57, 76,009.62 and 31,210.80 is: 43,070.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,079.57 : 76,009.62 = 31,210.80 : x
  2. Step 2: Convert to fraction form
    55,079.57/76,009.62 = 31,210.80/x
  3. Step 3: Cross multiply
    55,079.57x = 76,009.62 × 31,210.80
  4. Step 4: Simplify right side
    55,079.57x = 2,372,320,879.90
  5. Step 5: Solve for x
    x = 2,372,320,879.90/55,079.57
  6. Step 6: Final answer
    x = 43,070.79

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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.