Home / 74,475.86-102,772.36-40,484.17

Finding the Fourth Proportional to 74,475.86, 102,772.36 and 40,484.17

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Solution

The fourth proportional to 74,475.86, 102,772.36 and 40,484.17 is: 55,865.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,475.86 : 102,772.36 = 40,484.17 : x
  2. Step 2: Convert to fraction form
    74,475.86/102,772.36 = 40,484.17/x
  3. Step 3: Cross multiply
    74,475.86x = 102,772.36 × 40,484.17
  4. Step 4: Simplify right side
    74,475.86x = 4,160,653,872.61
  5. Step 5: Solve for x
    x = 4,160,653,872.61/74,475.86
  6. Step 6: Final answer
    x = 55,865.81

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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.