Home / 77,160.10-106,480.40-43,168.42

Finding the Fourth Proportional to 77,160.10, 106,480.40 and 43,168.42

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Solution

The fourth proportional to 77,160.10, 106,480.40 and 43,168.42 is: 59,572.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,160.10 : 106,480.40 = 43,168.42 : x
  2. Step 2: Convert to fraction form
    77,160.10/106,480.40 = 43,168.42/x
  3. Step 3: Cross multiply
    77,160.10x = 106,480.40 × 43,168.42
  4. Step 4: Simplify right side
    77,160.10x = 4,596,590,628.97
  5. Step 5: Solve for x
    x = 4,596,590,628.97/77,160.10
  6. Step 6: Final answer
    x = 59,572.12

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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.