Home / 55,089.36-76,017.15-31,210.92

Finding the Fourth Proportional to 55,089.36, 76,017.15 and 31,210.92

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Solution

The fourth proportional to 55,089.36, 76,017.15 and 31,210.92 is: 43,067.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,089.36 : 76,017.15 = 31,210.92 : x
  2. Step 2: Convert to fraction form
    55,089.36/76,017.15 = 31,210.92/x
  3. Step 3: Cross multiply
    55,089.36x = 76,017.15 × 31,210.92
  4. Step 4: Simplify right side
    55,089.36x = 2,372,565,187.28
  5. Step 5: Solve for x
    x = 2,372,565,187.28/55,089.36
  6. Step 6: Final answer
    x = 43,067.58

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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.