Home / 56,391.04-77,811.78-31,242.16

Finding the Fourth Proportional to 56,391.04, 77,811.78 and 31,242.16

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Solution

The fourth proportional to 56,391.04, 77,811.78 and 31,242.16 is: 43,109.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,391.04 : 77,811.78 = 31,242.16 : x
  2. Step 2: Convert to fraction form
    56,391.04/77,811.78 = 31,242.16/x
  3. Step 3: Cross multiply
    56,391.04x = 77,811.78 × 31,242.16
  4. Step 4: Simplify right side
    56,391.04x = 2,431,008,080.64
  5. Step 5: Solve for x
    x = 2,431,008,080.64/56,391.04
  6. Step 6: Final answer
    x = 43,109.83

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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.