Home / 74,574.72-102,913.55-40,583.47

Finding the Fourth Proportional to 74,574.72, 102,913.55 and 40,583.47

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Solution

The fourth proportional to 74,574.72, 102,913.55 and 40,583.47 is: 56,005.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,574.72 : 102,913.55 = 40,583.47 : x
  2. Step 2: Convert to fraction form
    74,574.72/102,913.55 = 40,583.47/x
  3. Step 3: Cross multiply
    74,574.72x = 102,913.55 × 40,583.47
  4. Step 4: Simplify right side
    74,574.72x = 4,176,588,969.02
  5. Step 5: Solve for x
    x = 4,176,588,969.02/74,574.72
  6. Step 6: Final answer
    x = 56,005.43

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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.