Home / 77,971.04-107,595.92-43,978.56

Finding the Fourth Proportional to 77,971.04, 107,595.92 and 43,978.56

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Solution

The fourth proportional to 77,971.04, 107,595.92 and 43,978.56 is: 60,688.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,971.04 : 107,595.92 = 43,978.56 : x
  2. Step 2: Convert to fraction form
    77,971.04/107,595.92 = 43,978.56/x
  3. Step 3: Cross multiply
    77,971.04x = 107,595.92 × 43,978.56
  4. Step 4: Simplify right side
    77,971.04x = 4,731,913,623.48
  5. Step 5: Solve for x
    x = 4,731,913,623.48/77,971.04
  6. Step 6: Final answer
    x = 60,688.09

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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.