Home / 78,660.14-108,552.18-42,850.13

Finding the Fourth Proportional to 78,660.14, 108,552.18 and 42,850.13

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Solution

The fourth proportional to 78,660.14, 108,552.18 and 42,850.13 is: 59,133.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,660.14 : 108,552.18 = 42,850.13 : x
  2. Step 2: Convert to fraction form
    78,660.14/108,552.18 = 42,850.13/x
  3. Step 3: Cross multiply
    78,660.14x = 108,552.18 × 42,850.13
  4. Step 4: Simplify right side
    78,660.14x = 4,651,474,482.02
  5. Step 5: Solve for x
    x = 4,651,474,482.02/78,660.14
  6. Step 6: Final answer
    x = 59,133.82

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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.