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Finding the Fourth Proportional to 72,903.53, 109,355.30 and 17,499.53

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Solution

The fourth proportional to 72,903.53, 109,355.30 and 17,499.53 is: 26,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,903.53 : 109,355.30 = 17,499.53 : x
  2. Step 2: Convert to fraction form
    72,903.53/109,355.30 = 17,499.53/x
  3. Step 3: Cross multiply
    72,903.53x = 109,355.30 × 17,499.53
  4. Step 4: Simplify right side
    72,903.53x = 1,913,666,353.01
  5. Step 5: Solve for x
    x = 1,913,666,353.01/72,903.53
  6. Step 6: Final answer
    x = 26,249.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.