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Finding the Fourth Proportional to 72,497.34, 108,825.55 and 57,600.21

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Solution

The fourth proportional to 72,497.34, 108,825.55 and 57,600.21 is: 86,463.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,497.34 : 108,825.55 = 57,600.21 : x
  2. Step 2: Convert to fraction form
    72,497.34/108,825.55 = 57,600.21/x
  3. Step 3: Cross multiply
    72,497.34x = 108,825.55 × 57,600.21
  4. Step 4: Simplify right side
    72,497.34x = 6,268,374,533.37
  5. Step 5: Solve for x
    x = 6,268,374,533.37/72,497.34
  6. Step 6: Final answer
    x = 86,463.51

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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.