Home / 85,821.28-118,323.84-55,553.20

Finding the Fourth Proportional to 85,821.28, 118,323.84 and 55,553.20

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Solution

The fourth proportional to 85,821.28, 118,323.84 and 55,553.20 is: 76,592.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,821.28 : 118,323.84 = 55,553.20 : x
  2. Step 2: Convert to fraction form
    85,821.28/118,323.84 = 55,553.20/x
  3. Step 3: Cross multiply
    85,821.28x = 118,323.84 × 55,553.20
  4. Step 4: Simplify right side
    85,821.28x = 6,573,267,948.29
  5. Step 5: Solve for x
    x = 6,573,267,948.29/85,821.28
  6. Step 6: Final answer
    x = 76,592.52

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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.