Home / 56,633.50-78,154.23-31,487.86

Finding the Fourth Proportional to 56,633.50, 78,154.23 and 31,487.86

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Solution

The fourth proportional to 56,633.50, 78,154.23 and 31,487.86 is: 43,453.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,633.50 : 78,154.23 = 31,487.86 : x
  2. Step 2: Convert to fraction form
    56,633.50/78,154.23 = 31,487.86/x
  3. Step 3: Cross multiply
    56,633.50x = 78,154.23 × 31,487.86
  4. Step 4: Simplify right side
    56,633.50x = 2,460,909,452.65
  5. Step 5: Solve for x
    x = 2,460,909,452.65/56,633.50
  6. Step 6: Final answer
    x = 43,453.25

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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.