Home / 77,120.04-106,424.92-43,128.15

Finding the Fourth Proportional to 77,120.04, 106,424.92 and 43,128.15

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Solution

The fourth proportional to 77,120.04, 106,424.92 and 43,128.15 is: 59,516.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,120.04 : 106,424.92 = 43,128.15 : x
  2. Step 2: Convert to fraction form
    77,120.04/106,424.92 = 43,128.15/x
  3. Step 3: Cross multiply
    77,120.04x = 106,424.92 × 43,128.15
  4. Step 4: Simplify right side
    77,120.04x = 4,589,909,913.50
  5. Step 5: Solve for x
    x = 4,589,909,913.50/77,120.04
  6. Step 6: Final answer
    x = 59,516.44

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1.5x scale

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.