Home / 56,784.22-78,363.78-31,633.72

Finding the Fourth Proportional to 56,784.22, 78,363.78 and 31,633.72

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Solution

The fourth proportional to 56,784.22, 78,363.78 and 31,633.72 is: 43,655.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,784.22 : 78,363.78 = 31,633.72 : x
  2. Step 2: Convert to fraction form
    56,784.22/78,363.78 = 31,633.72/x
  3. Step 3: Cross multiply
    56,784.22x = 78,363.78 × 31,633.72
  4. Step 4: Simplify right side
    56,784.22x = 2,478,937,874.66
  5. Step 5: Solve for x
    x = 2,478,937,874.66/56,784.22
  6. Step 6: Final answer
    x = 43,655.40

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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.