Home / 77,146.17-106,456.70-43,148.77

Finding the Fourth Proportional to 77,146.17, 106,456.70 and 43,148.77

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Solution

The fourth proportional to 77,146.17, 106,456.70 and 43,148.77 is: 59,542.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,146.17 : 106,456.70 = 43,148.77 : x
  2. Step 2: Convert to fraction form
    77,146.17/106,456.70 = 43,148.77/x
  3. Step 3: Cross multiply
    77,146.17x = 106,456.70 × 43,148.77
  4. Step 4: Simplify right side
    77,146.17x = 4,593,475,262.28
  5. Step 5: Solve for x
    x = 4,593,475,262.28/77,146.17
  6. Step 6: Final answer
    x = 59,542.49

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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.