Home / 77,430.43-106,740.89-54,729.37

Finding the Fourth Proportional to 77,430.43, 106,740.89 and 54,729.37

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Solution

The fourth proportional to 77,430.43, 106,740.89 and 54,729.37 is: 75,446.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,430.43 : 106,740.89 = 54,729.37 : x
  2. Step 2: Convert to fraction form
    77,430.43/106,740.89 = 54,729.37/x
  3. Step 3: Cross multiply
    77,430.43x = 106,740.89 × 54,729.37
  4. Step 4: Simplify right side
    77,430.43x = 5,841,861,727.95
  5. Step 5: Solve for x
    x = 5,841,861,727.95/77,430.43
  6. Step 6: Final answer
    x = 75,446.59

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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.