Home / 85,821.40-118,433.28-48,095.64

Finding the Fourth Proportional to 85,821.40, 118,433.28 and 48,095.64

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Solution

The fourth proportional to 85,821.40, 118,433.28 and 48,095.64 is: 66,371.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,821.40 : 118,433.28 = 48,095.64 : x
  2. Step 2: Convert to fraction form
    85,821.40/118,433.28 = 48,095.64/x
  3. Step 3: Cross multiply
    85,821.40x = 118,433.28 × 48,095.64
  4. Step 4: Simplify right side
    85,821.40x = 5,696,124,398.90
  5. Step 5: Solve for x
    x = 5,696,124,398.90/85,821.40
  6. Step 6: Final answer
    x = 66,371.84

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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.