Home / 55,980.36-77,252.13-31,781.10

Finding the Fourth Proportional to 55,980.36, 77,252.13 and 31,781.10

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Solution

The fourth proportional to 55,980.36, 77,252.13 and 31,781.10 is: 43,857.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,980.36 : 77,252.13 = 31,781.10 : x
  2. Step 2: Convert to fraction form
    55,980.36/77,252.13 = 31,781.10/x
  3. Step 3: Cross multiply
    55,980.36x = 77,252.13 × 31,781.10
  4. Step 4: Simplify right side
    55,980.36x = 2,455,157,611.90
  5. Step 5: Solve for x
    x = 2,455,157,611.90/55,980.36
  6. Step 6: Final answer
    x = 43,857.49

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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.