Home / 56,813.49-78,403.01-31,664.61

Finding the Fourth Proportional to 56,813.49, 78,403.01 and 31,664.61

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Solution

The fourth proportional to 56,813.49, 78,403.01 and 31,664.61 is: 43,697.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,813.49 : 78,403.01 = 31,664.61 : x
  2. Step 2: Convert to fraction form
    56,813.49/78,403.01 = 31,664.61/x
  3. Step 3: Cross multiply
    56,813.49x = 78,403.01 × 31,664.61
  4. Step 4: Simplify right side
    56,813.49x = 2,482,600,576.15
  5. Step 5: Solve for x
    x = 2,482,600,576.15/56,813.49
  6. Step 6: Final answer
    x = 43,697.38

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1.5x scale

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.