Home / 77,740.49-107,280.57-43,748.93

Finding the Fourth Proportional to 77,740.49, 107,280.57 and 43,748.93

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Solution

The fourth proportional to 77,740.49, 107,280.57 and 43,748.93 is: 60,372.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,740.49 : 107,280.57 = 43,748.93 : x
  2. Step 2: Convert to fraction form
    77,740.49/107,280.57 = 43,748.93/x
  3. Step 3: Cross multiply
    77,740.49x = 107,280.57 × 43,748.93
  4. Step 4: Simplify right side
    77,740.49x = 4,693,410,147.29
  5. Step 5: Solve for x
    x = 4,693,410,147.29/77,740.49
  6. Step 6: Final answer
    x = 60,372.79

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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.