Home / 55,985.36-77,258.40-31,790.84

Finding the Fourth Proportional to 55,985.36, 77,258.40 and 31,790.84

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Solution

The fourth proportional to 55,985.36, 77,258.40 and 31,790.84 is: 43,870.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,985.36 : 77,258.40 = 31,790.84 : x
  2. Step 2: Convert to fraction form
    55,985.36/77,258.40 = 31,790.84/x
  3. Step 3: Cross multiply
    55,985.36x = 77,258.40 × 31,790.84
  4. Step 4: Simplify right side
    55,985.36x = 2,456,109,433.06
  5. Step 5: Solve for x
    x = 2,456,109,433.06/55,985.36
  6. Step 6: Final answer
    x = 43,870.57

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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.