Home / 52,639.22-72,618.80-31,406.15

Finding the Fourth Proportional to 52,639.22, 72,618.80 and 31,406.15

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Solution

The fourth proportional to 52,639.22, 72,618.80 and 31,406.15 is: 43,326.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,639.22 : 72,618.80 = 31,406.15 : x
  2. Step 2: Convert to fraction form
    52,639.22/72,618.80 = 31,406.15/x
  3. Step 3: Cross multiply
    52,639.22x = 72,618.80 × 31,406.15
  4. Step 4: Simplify right side
    52,639.22x = 2,280,676,405.50
  5. Step 5: Solve for x
    x = 2,280,676,405.50/52,639.22
  6. Step 6: Final answer
    x = 43,326.57

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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.