Home / 56,867.64-78,477.15-31,717.14

Finding the Fourth Proportional to 56,867.64, 78,477.15 and 31,717.14

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Solution

The fourth proportional to 56,867.64, 78,477.15 and 31,717.14 is: 43,769.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,867.64 : 78,477.15 = 31,717.14 : x
  2. Step 2: Convert to fraction form
    56,867.64/78,477.15 = 31,717.14/x
  3. Step 3: Cross multiply
    56,867.64x = 78,477.15 × 31,717.14
  4. Step 4: Simplify right side
    56,867.64x = 2,489,070,753.35
  5. Step 5: Solve for x
    x = 2,489,070,753.35/56,867.64
  6. Step 6: Final answer
    x = 43,769.55

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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.