Home / 55,258.66-76,257.12-31,385.53

Finding the Fourth Proportional to 55,258.66, 76,257.12 and 31,385.53

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Solution

The fourth proportional to 55,258.66, 76,257.12 and 31,385.53 is: 43,312.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,258.66 : 76,257.12 = 31,385.53 : x
  2. Step 2: Convert to fraction form
    55,258.66/76,257.12 = 31,385.53/x
  3. Step 3: Cross multiply
    55,258.66x = 76,257.12 × 31,385.53
  4. Step 4: Simplify right side
    55,258.66x = 2,393,370,127.47
  5. Step 5: Solve for x
    x = 2,393,370,127.47/55,258.66
  6. Step 6: Final answer
    x = 43,312.13

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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.