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Finding the Fourth Proportional to 72,337.71, 99,823.29 and 40,505.01

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Solution

The fourth proportional to 72,337.71, 99,823.29 and 40,505.01 is: 55,895.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,337.71 : 99,823.29 = 40,505.01 : x
  2. Step 2: Convert to fraction form
    72,337.71/99,823.29 = 40,505.01/x
  3. Step 3: Cross multiply
    72,337.71x = 99,823.29 × 40,505.01
  4. Step 4: Simplify right side
    72,337.71x = 4,043,343,157.16
  5. Step 5: Solve for x
    x = 4,043,343,157.16/72,337.71
  6. Step 6: Final answer
    x = 55,895.37

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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.