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Finding the Fourth Proportional to 76,126.59, 105,064.49 and 45,928.22

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Solution

The fourth proportional to 76,126.59, 105,064.49 and 45,928.22 is: 63,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,126.59 : 105,064.49 = 45,928.22 : x
  2. Step 2: Convert to fraction form
    76,126.59/105,064.49 = 45,928.22/x
  3. Step 3: Cross multiply
    76,126.59x = 105,064.49 × 45,928.22
  4. Step 4: Simplify right side
    76,126.59x = 4,825,424,600.41
  5. Step 5: Solve for x
    x = 4,825,424,600.41/76,126.59
  6. Step 6: Final answer
    x = 63,386.85

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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.