Home / 56,360.22-77,782.32-31,209.72

Finding the Fourth Proportional to 56,360.22, 77,782.32 and 31,209.72

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Solution

The fourth proportional to 56,360.22, 77,782.32 and 31,209.72 is: 43,072.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,360.22 : 77,782.32 = 31,209.72 : x
  2. Step 2: Convert to fraction form
    56,360.22/77,782.32 = 31,209.72/x
  3. Step 3: Cross multiply
    56,360.22x = 77,782.32 × 31,209.72
  4. Step 4: Simplify right side
    56,360.22x = 2,427,564,428.15
  5. Step 5: Solve for x
    x = 2,427,564,428.15/56,360.22
  6. Step 6: Final answer
    x = 43,072.30

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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.