Home / 56,560.68-78,051.60-31,411.80

Finding the Fourth Proportional to 56,560.68, 78,051.60 and 31,411.80

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Solution

The fourth proportional to 56,560.68, 78,051.60 and 31,411.80 is: 43,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,560.68 : 78,051.60 = 31,411.80 : x
  2. Step 2: Convert to fraction form
    56,560.68/78,051.60 = 31,411.80/x
  3. Step 3: Cross multiply
    56,560.68x = 78,051.60 × 31,411.80
  4. Step 4: Simplify right side
    56,560.68x = 2,451,741,248.88
  5. Step 5: Solve for x
    x = 2,451,741,248.88/56,560.68
  6. Step 6: Final answer
    x = 43,347.10

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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.