Home / 39,770.66-59,664.63-12,070.82

Finding the Fourth Proportional to 39,770.66, 59,664.63 and 12,070.82

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Solution

The fourth proportional to 39,770.66, 59,664.63 and 12,070.82 is: 18,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,770.66 : 59,664.63 = 12,070.82 : x
  2. Step 2: Convert to fraction form
    39,770.66/59,664.63 = 12,070.82/x
  3. Step 3: Cross multiply
    39,770.66x = 59,664.63 × 12,070.82
  4. Step 4: Simplify right side
    39,770.66x = 720,201,009.10
  5. Step 5: Solve for x
    x = 720,201,009.10/39,770.66
  6. Step 6: Final answer
    x = 18,108.85

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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.