Home / 56,628.64-78,148.48-31,136.05

Finding the Fourth Proportional to 56,628.64, 78,148.48 and 31,136.05

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Solution

The fourth proportional to 56,628.64, 78,148.48 and 31,136.05 is: 42,968.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,628.64 : 78,148.48 = 31,136.05 : x
  2. Step 2: Convert to fraction form
    56,628.64/78,148.48 = 31,136.05/x
  3. Step 3: Cross multiply
    56,628.64x = 78,148.48 × 31,136.05
  4. Step 4: Simplify right side
    56,628.64x = 2,433,234,589.96
  5. Step 5: Solve for x
    x = 2,433,234,589.96/56,628.64
  6. Step 6: Final answer
    x = 42,968.27

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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.