Home / 77,514.47-106,951.70-43,980.47

Finding the Fourth Proportional to 77,514.47, 106,951.70 and 43,980.47

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Solution

The fourth proportional to 77,514.47, 106,951.70 and 43,980.47 is: 60,682.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,514.47 : 106,951.70 = 43,980.47 : x
  2. Step 2: Convert to fraction form
    77,514.47/106,951.70 = 43,980.47/x
  3. Step 3: Cross multiply
    77,514.47x = 106,951.70 × 43,980.47
  4. Step 4: Simplify right side
    77,514.47x = 4,703,785,813.40
  5. Step 5: Solve for x
    x = 4,703,785,813.40/77,514.47
  6. Step 6: Final answer
    x = 60,682.68

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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.