Home / 56,719.73-78,275.83-31,570.85

Finding the Fourth Proportional to 56,719.73, 78,275.83 and 31,570.85

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Solution

The fourth proportional to 56,719.73, 78,275.83 and 31,570.85 is: 43,569.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,719.73 : 78,275.83 = 31,570.85 : x
  2. Step 2: Convert to fraction form
    56,719.73/78,275.83 = 31,570.85/x
  3. Step 3: Cross multiply
    56,719.73x = 78,275.83 × 31,570.85
  4. Step 4: Simplify right side
    56,719.73x = 2,471,234,017.25
  5. Step 5: Solve for x
    x = 2,471,234,017.25/56,719.73
  6. Step 6: Final answer
    x = 43,569.22

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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.