Home / 74,636.10-102,995.82-40,643.91

Finding the Fourth Proportional to 74,636.10, 102,995.82 and 40,643.91

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Solution

The fourth proportional to 74,636.10, 102,995.82 and 40,643.91 is: 56,087.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,636.10 : 102,995.82 = 40,643.91 : x
  2. Step 2: Convert to fraction form
    74,636.10/102,995.82 = 40,643.91/x
  3. Step 3: Cross multiply
    74,636.10x = 102,995.82 × 40,643.91
  4. Step 4: Simplify right side
    74,636.10x = 4,186,152,838.46
  5. Step 5: Solve for x
    x = 4,186,152,838.46/74,636.10
  6. Step 6: Final answer
    x = 56,087.51

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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.