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Finding the Fourth Proportional to 81,599.84, 112,598.64 and 45,782.40

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Solution

The fourth proportional to 81,599.84, 112,598.64 and 45,782.40 is: 63,174.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,599.84 : 112,598.64 = 45,782.40 : x
  2. Step 2: Convert to fraction form
    81,599.84/112,598.64 = 45,782.40/x
  3. Step 3: Cross multiply
    81,599.84x = 112,598.64 × 45,782.40
  4. Step 4: Simplify right side
    81,599.84x = 5,155,035,975.94
  5. Step 5: Solve for x
    x = 5,155,035,975.94/81,599.84
  6. Step 6: Final answer
    x = 63,174.58

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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.