Home / 72,748.26-100,392.21-40,916.48

Finding the Fourth Proportional to 72,748.26, 100,392.21 and 40,916.48

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Solution

The fourth proportional to 72,748.26, 100,392.21 and 40,916.48 is: 56,464.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,748.26 : 100,392.21 = 40,916.48 : x
  2. Step 2: Convert to fraction form
    72,748.26/100,392.21 = 40,916.48/x
  3. Step 3: Cross multiply
    72,748.26x = 100,392.21 × 40,916.48
  4. Step 4: Simplify right side
    72,748.26x = 4,107,695,350.66
  5. Step 5: Solve for x
    x = 4,107,695,350.66/72,748.26
  6. Step 6: Final answer
    x = 56,464.52

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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.