Home / 81,503.12-112,473.20-45,693.04

Finding the Fourth Proportional to 81,503.12, 112,473.20 and 45,693.04

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Solution

The fourth proportional to 81,503.12, 112,473.20 and 45,693.04 is: 63,055.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,503.12 : 112,473.20 = 45,693.04 : x
  2. Step 2: Convert to fraction form
    81,503.12/112,473.20 = 45,693.04/x
  3. Step 3: Cross multiply
    81,503.12x = 112,473.20 × 45,693.04
  4. Step 4: Simplify right side
    81,503.12x = 5,139,242,426.53
  5. Step 5: Solve for x
    x = 5,139,242,426.53/81,503.12
  6. Step 6: Final answer
    x = 63,055.78

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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.