Home / 71,875.17-107,813.67-40,280.31

Finding the Fourth Proportional to 71,875.17, 107,813.67 and 40,280.31

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Solution

The fourth proportional to 71,875.17, 107,813.67 and 40,280.31 is: 60,420.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,875.17 : 107,813.67 = 40,280.31 : x
  2. Step 2: Convert to fraction form
    71,875.17/107,813.67 = 40,280.31/x
  3. Step 3: Cross multiply
    71,875.17x = 107,813.67 × 40,280.31
  4. Step 4: Simplify right side
    71,875.17x = 4,342,768,049.84
  5. Step 5: Solve for x
    x = 4,342,768,049.84/71,875.17
  6. Step 6: Final answer
    x = 60,420.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.