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Finding the Fourth Proportional to 72,710.64, 109,066.68 and 30,597.84

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Solution

The fourth proportional to 72,710.64, 109,066.68 and 30,597.84 is: 45,897.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,710.64 : 109,066.68 = 30,597.84 : x
  2. Step 2: Convert to fraction form
    72,710.64/109,066.68 = 30,597.84/x
  3. Step 3: Cross multiply
    72,710.64x = 109,066.68 × 30,597.84
  4. Step 4: Simplify right side
    72,710.64x = 3,337,204,823.97
  5. Step 5: Solve for x
    x = 3,337,204,823.97/72,710.64
  6. Step 6: Final answer
    x = 45,897.06

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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.