Home / 78,985.46-108,999.93-43,175.62

Finding the Fourth Proportional to 78,985.46, 108,999.93 and 43,175.62

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Solution

The fourth proportional to 78,985.46, 108,999.93 and 43,175.62 is: 59,582.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,985.46 : 108,999.93 = 43,175.62 : x
  2. Step 2: Convert to fraction form
    78,985.46/108,999.93 = 43,175.62/x
  3. Step 3: Cross multiply
    78,985.46x = 108,999.93 × 43,175.62
  4. Step 4: Simplify right side
    78,985.46x = 4,706,139,557.71
  5. Step 5: Solve for x
    x = 4,706,139,557.71/78,985.46
  6. Step 6: Final answer
    x = 59,582.35

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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.