Home / 85,742.32-118,231.98-58,521.46

Finding the Fourth Proportional to 85,742.32, 118,231.98 and 58,521.46

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Solution

The fourth proportional to 85,742.32, 118,231.98 and 58,521.46 is: 80,696.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,742.32 : 118,231.98 = 58,521.46 : x
  2. Step 2: Convert to fraction form
    85,742.32/118,231.98 = 58,521.46/x
  3. Step 3: Cross multiply
    85,742.32x = 118,231.98 × 58,521.46
  4. Step 4: Simplify right side
    85,742.32x = 6,919,108,088.29
  5. Step 5: Solve for x
    x = 6,919,108,088.29/85,742.32
  6. Step 6: Final answer
    x = 80,696.53

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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.