Home / 55,368.32-76,398.06-31,493.60

Finding the Fourth Proportional to 55,368.32, 76,398.06 and 31,493.60

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Solution

The fourth proportional to 55,368.32, 76,398.06 and 31,493.60 is: 43,455.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,368.32 : 76,398.06 = 31,493.60 : x
  2. Step 2: Convert to fraction form
    55,368.32/76,398.06 = 31,493.60/x
  3. Step 3: Cross multiply
    55,368.32x = 76,398.06 × 31,493.60
  4. Step 4: Simplify right side
    55,368.32x = 2,406,049,942.42
  5. Step 5: Solve for x
    x = 2,406,049,942.42/55,368.32
  6. Step 6: Final answer
    x = 43,455.35

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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.