Home / 72,445.85-99,975.20-40,614.75

Finding the Fourth Proportional to 72,445.85, 99,975.20 and 40,614.75

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Solution

The fourth proportional to 72,445.85, 99,975.20 and 40,614.75 is: 56,048.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,445.85 : 99,975.20 = 40,614.75 : x
  2. Step 2: Convert to fraction form
    72,445.85/99,975.20 = 40,614.75/x
  3. Step 3: Cross multiply
    72,445.85x = 99,975.20 × 40,614.75
  4. Step 4: Simplify right side
    72,445.85x = 4,060,467,754.20
  5. Step 5: Solve for x
    x = 4,060,467,754.20/72,445.85
  6. Step 6: Final answer
    x = 56,048.32

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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.