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Finding the Fourth Proportional to 72,444.79, 99,975.90 and 40,614.22

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Solution

The fourth proportional to 72,444.79, 99,975.90 and 40,614.22 is: 56,048.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,444.79 : 99,975.90 = 40,614.22 : x
  2. Step 2: Convert to fraction form
    72,444.79/99,975.90 = 40,614.22/x
  3. Step 3: Cross multiply
    72,444.79x = 99,975.90 × 40,614.22
  4. Step 4: Simplify right side
    72,444.79x = 4,060,443,197.30
  5. Step 5: Solve for x
    x = 4,060,443,197.30/72,444.79
  6. Step 6: Final answer
    x = 56,048.80

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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.