Home / 85,740.32-118,229.22-58,519.46

Finding the Fourth Proportional to 85,740.32, 118,229.22 and 58,519.46

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Solution

The fourth proportional to 85,740.32, 118,229.22 and 58,519.46 is: 80,693.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,740.32 : 118,229.22 = 58,519.46 : x
  2. Step 2: Convert to fraction form
    85,740.32/118,229.22 = 58,519.46/x
  3. Step 3: Cross multiply
    85,740.32x = 118,229.22 × 58,519.46
  4. Step 4: Simplify right side
    85,740.32x = 6,918,710,406.19
  5. Step 5: Solve for x
    x = 6,918,710,406.19/85,740.32
  6. Step 6: Final answer
    x = 80,693.78

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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.