Home / 74,811.27-103,146.17-47,909.55

Finding the Fourth Proportional to 74,811.27, 103,146.17 and 47,909.55

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Solution

The fourth proportional to 74,811.27, 103,146.17 and 47,909.55 is: 66,055.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,811.27 : 103,146.17 = 47,909.55 : x
  2. Step 2: Convert to fraction form
    74,811.27/103,146.17 = 47,909.55/x
  3. Step 3: Cross multiply
    74,811.27x = 103,146.17 × 47,909.55
  4. Step 4: Simplify right side
    74,811.27x = 4,941,686,588.92
  5. Step 5: Solve for x
    x = 4,941,686,588.92/74,811.27
  6. Step 6: Final answer
    x = 66,055.38

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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.