Home / 56,365.76-77,787.20-31,215.24

Finding the Fourth Proportional to 56,365.76, 77,787.20 and 31,215.24

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Solution

The fourth proportional to 56,365.76, 77,787.20 and 31,215.24 is: 43,078.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,365.76 : 77,787.20 = 31,215.24 : x
  2. Step 2: Convert to fraction form
    56,365.76/77,787.20 = 31,215.24/x
  3. Step 3: Cross multiply
    56,365.76x = 77,787.20 × 31,215.24
  4. Step 4: Simplify right side
    56,365.76x = 2,428,146,116.93
  5. Step 5: Solve for x
    x = 2,428,146,116.93/56,365.76
  6. Step 6: Final answer
    x = 43,078.39

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1.5x scale

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.