Home / 92,438.63-138,685.80-39,103.17

Finding the Fourth Proportional to 92,438.63, 138,685.80 and 39,103.17

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Solution

The fourth proportional to 92,438.63, 138,685.80 and 39,103.17 is: 58,666.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,438.63 : 138,685.80 = 39,103.17 : x
  2. Step 2: Convert to fraction form
    92,438.63/138,685.80 = 39,103.17/x
  3. Step 3: Cross multiply
    92,438.63x = 138,685.80 × 39,103.17
  4. Step 4: Simplify right side
    92,438.63x = 5,423,054,413.99
  5. Step 5: Solve for x
    x = 5,423,054,413.99/92,438.63
  6. Step 6: Final answer
    x = 58,666.54

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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.