Home / 77,998.28-107,637.27-42,188.19

Finding the Fourth Proportional to 77,998.28, 107,637.27 and 42,188.19

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Solution

The fourth proportional to 77,998.28, 107,637.27 and 42,188.19 is: 58,219.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,998.28 : 107,637.27 = 42,188.19 : x
  2. Step 2: Convert to fraction form
    77,998.28/107,637.27 = 42,188.19/x
  3. Step 3: Cross multiply
    77,998.28x = 107,637.27 × 42,188.19
  4. Step 4: Simplify right side
    77,998.28x = 4,541,021,597.84
  5. Step 5: Solve for x
    x = 4,541,021,597.84/77,998.28
  6. Step 6: Final answer
    x = 58,219.51

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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.