Home / 77,376.68-106,740.51-50,534.90

Finding the Fourth Proportional to 77,376.68, 106,740.51 and 50,534.90

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Solution

The fourth proportional to 77,376.68, 106,740.51 and 50,534.90 is: 69,712.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,376.68 : 106,740.51 = 50,534.90 : x
  2. Step 2: Convert to fraction form
    77,376.68/106,740.51 = 50,534.90/x
  3. Step 3: Cross multiply
    77,376.68x = 106,740.51 × 50,534.90
  4. Step 4: Simplify right side
    77,376.68x = 5,394,120,465.10
  5. Step 5: Solve for x
    x = 5,394,120,465.10/77,376.68
  6. Step 6: Final answer
    x = 69,712.49

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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.