Home / 40,788.90-56,346.03-31,477.14

Finding the Fourth Proportional to 40,788.90, 56,346.03 and 31,477.14

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Solution

The fourth proportional to 40,788.90, 56,346.03 and 31,477.14 is: 43,482.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,788.90 : 56,346.03 = 31,477.14 : x
  2. Step 2: Convert to fraction form
    40,788.90/56,346.03 = 31,477.14/x
  3. Step 3: Cross multiply
    40,788.90x = 56,346.03 × 31,477.14
  4. Step 4: Simplify right side
    40,788.90x = 1,773,611,874.75
  5. Step 5: Solve for x
    x = 1,773,611,874.75/40,788.90
  6. Step 6: Final answer
    x = 43,482.71

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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.