Home / 77,339.63-106,728.69-43,805.63

Finding the Fourth Proportional to 77,339.63, 106,728.69 and 43,805.63

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Solution

The fourth proportional to 77,339.63, 106,728.69 and 43,805.63 is: 60,451.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,339.63 : 106,728.69 = 43,805.63 : x
  2. Step 2: Convert to fraction form
    77,339.63/106,728.69 = 43,805.63/x
  3. Step 3: Cross multiply
    77,339.63x = 106,728.69 × 43,805.63
  4. Step 4: Simplify right side
    77,339.63x = 4,675,316,970.88
  5. Step 5: Solve for x
    x = 4,675,316,970.88/77,339.63
  6. Step 6: Final answer
    x = 60,451.77

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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.