Home / 76,259.28-105,244.10-42,278.42

Finding the Fourth Proportional to 76,259.28, 105,244.10 and 42,278.42

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Solution

The fourth proportional to 76,259.28, 105,244.10 and 42,278.42 is: 58,347.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,259.28 : 105,244.10 = 42,278.42 : x
  2. Step 2: Convert to fraction form
    76,259.28/105,244.10 = 42,278.42/x
  3. Step 3: Cross multiply
    76,259.28x = 105,244.10 × 42,278.42
  4. Step 4: Simplify right side
    76,259.28x = 4,449,554,262.32
  5. Step 5: Solve for x
    x = 4,449,554,262.32/76,259.28
  6. Step 6: Final answer
    x = 58,347.71

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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.