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Finding the Fourth Proportional to 81,335.64, 112,242.08 and 45,525.64

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Solution

The fourth proportional to 81,335.64, 112,242.08 and 45,525.64 is: 62,824.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,335.64 : 112,242.08 = 45,525.64 : x
  2. Step 2: Convert to fraction form
    81,335.64/112,242.08 = 45,525.64/x
  3. Step 3: Cross multiply
    81,335.64x = 112,242.08 × 45,525.64
  4. Step 4: Simplify right side
    81,335.64x = 5,109,892,526.93
  5. Step 5: Solve for x
    x = 5,109,892,526.93/81,335.64
  6. Step 6: Final answer
    x = 62,824.77

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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.