Home / 39,771.16-59,665.38-12,071.32

Finding the Fourth Proportional to 39,771.16, 59,665.38 and 12,071.32

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Solution

The fourth proportional to 39,771.16, 59,665.38 and 12,071.32 is: 18,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,771.16 : 59,665.38 = 12,071.32 : x
  2. Step 2: Convert to fraction form
    39,771.16/59,665.38 = 12,071.32/x
  3. Step 3: Cross multiply
    39,771.16x = 59,665.38 × 12,071.32
  4. Step 4: Simplify right side
    39,771.16x = 720,239,894.90
  5. Step 5: Solve for x
    x = 720,239,894.90/39,771.16
  6. Step 6: Final answer
    x = 18,109.60

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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.