Home / 55,485.07-76,565.25-31,607.08

Finding the Fourth Proportional to 55,485.07, 76,565.25 and 31,607.08

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Solution

The fourth proportional to 55,485.07, 76,565.25 and 31,607.08 is: 43,615.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,485.07 : 76,565.25 = 31,607.08 : x
  2. Step 2: Convert to fraction form
    55,485.07/76,565.25 = 31,607.08/x
  3. Step 3: Cross multiply
    55,485.07x = 76,565.25 × 31,607.08
  4. Step 4: Simplify right side
    55,485.07x = 2,420,003,981.97
  5. Step 5: Solve for x
    x = 2,420,003,981.97/55,485.07
  6. Step 6: Final answer
    x = 43,615.41

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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.