Home / 74,709.10-103,095.91-40,716.91

Finding the Fourth Proportional to 74,709.10, 103,095.91 and 40,716.91

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Solution

The fourth proportional to 74,709.10, 103,095.91 and 40,716.91 is: 56,187.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,709.10 : 103,095.91 = 40,716.91 : x
  2. Step 2: Convert to fraction form
    74,709.10/103,095.91 = 40,716.91/x
  3. Step 3: Cross multiply
    74,709.10x = 103,095.91 × 40,716.91
  4. Step 4: Simplify right side
    74,709.10x = 4,197,746,373.36
  5. Step 5: Solve for x
    x = 4,197,746,373.36/74,709.10
  6. Step 6: Final answer
    x = 56,187.89

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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.