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Finding the Fourth Proportional to 82,530.40, 113,892.42 and 48,540.32

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Solution

The fourth proportional to 82,530.40, 113,892.42 and 48,540.32 is: 66,985.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,530.40 : 113,892.42 = 48,540.32 : x
  2. Step 2: Convert to fraction form
    82,530.40/113,892.42 = 48,540.32/x
  3. Step 3: Cross multiply
    82,530.40x = 113,892.42 × 48,540.32
  4. Step 4: Simplify right side
    82,530.40x = 5,528,374,552.04
  5. Step 5: Solve for x
    x = 5,528,374,552.04/82,530.40
  6. Step 6: Final answer
    x = 66,985.92

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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.