Home / 78,625.04-108,501.80-42,814.96

Finding the Fourth Proportional to 78,625.04, 108,501.80 and 42,814.96

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Solution

The fourth proportional to 78,625.04, 108,501.80 and 42,814.96 is: 59,084.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,625.04 : 108,501.80 = 42,814.96 : x
  2. Step 2: Convert to fraction form
    78,625.04/108,501.80 = 42,814.96/x
  3. Step 3: Cross multiply
    78,625.04x = 108,501.80 × 42,814.96
  4. Step 4: Simplify right side
    78,625.04x = 4,645,500,226.93
  5. Step 5: Solve for x
    x = 4,645,500,226.93/78,625.04
  6. Step 6: Final answer
    x = 59,084.23

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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.