Home / 77,390.19-106,753.22-48,664.40

Finding the Fourth Proportional to 77,390.19, 106,753.22 and 48,664.40

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Solution

The fourth proportional to 77,390.19, 106,753.22 and 48,664.40 is: 67,128.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,390.19 : 106,753.22 = 48,664.40 : x
  2. Step 2: Convert to fraction form
    77,390.19/106,753.22 = 48,664.40/x
  3. Step 3: Cross multiply
    77,390.19x = 106,753.22 × 48,664.40
  4. Step 4: Simplify right side
    77,390.19x = 5,195,080,622.28
  5. Step 5: Solve for x
    x = 5,195,080,622.28/77,390.19
  6. Step 6: Final answer
    x = 67,128.41

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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.