Home / 74,829.12-103,264.80-40,837.88

Finding the Fourth Proportional to 74,829.12, 103,264.80 and 40,837.88

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Solution

The fourth proportional to 74,829.12, 103,264.80 and 40,837.88 is: 56,356.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,829.12 : 103,264.80 = 40,837.88 : x
  2. Step 2: Convert to fraction form
    74,829.12/103,264.80 = 40,837.88/x
  3. Step 3: Cross multiply
    74,829.12x = 103,264.80 × 40,837.88
  4. Step 4: Simplify right side
    74,829.12x = 4,217,115,510.62
  5. Step 5: Solve for x
    x = 4,217,115,510.62/74,829.12
  6. Step 6: Final answer
    x = 56,356.61

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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.