Home / 74,701.17-103,087.63-40,709.66

Finding the Fourth Proportional to 74,701.17, 103,087.63 and 40,709.66

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Solution

The fourth proportional to 74,701.17, 103,087.63 and 40,709.66 is: 56,179.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,701.17 : 103,087.63 = 40,709.66 : x
  2. Step 2: Convert to fraction form
    74,701.17/103,087.63 = 40,709.66/x
  3. Step 3: Cross multiply
    74,701.17x = 103,087.63 × 40,709.66
  4. Step 4: Simplify right side
    74,701.17x = 4,196,662,523.45
  5. Step 5: Solve for x
    x = 4,196,662,523.45/74,701.17
  6. Step 6: Final answer
    x = 56,179.34

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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.