Home / 56,705.32-78,252.73-31,211.14

Finding the Fourth Proportional to 56,705.32, 78,252.73 and 31,211.14

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Solution

The fourth proportional to 56,705.32, 78,252.73 and 31,211.14 is: 43,071.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,705.32 : 78,252.73 = 31,211.14 : x
  2. Step 2: Convert to fraction form
    56,705.32/78,252.73 = 31,211.14/x
  3. Step 3: Cross multiply
    56,705.32x = 78,252.73 × 31,211.14
  4. Step 4: Simplify right side
    56,705.32x = 2,442,357,004.56
  5. Step 5: Solve for x
    x = 2,442,357,004.56/56,705.32
  6. Step 6: Final answer
    x = 43,071.04

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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.