Home / 54,312.38-74,950.90-31,664.78

Finding the Fourth Proportional to 54,312.38, 74,950.90 and 31,664.78

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Solution

The fourth proportional to 54,312.38, 74,950.90 and 31,664.78 is: 43,697.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,312.38 : 74,950.90 = 31,664.78 : x
  2. Step 2: Convert to fraction form
    54,312.38/74,950.90 = 31,664.78/x
  3. Step 3: Cross multiply
    54,312.38x = 74,950.90 × 31,664.78
  4. Step 4: Simplify right side
    54,312.38x = 2,373,303,384.55
  5. Step 5: Solve for x
    x = 2,373,303,384.55/54,312.38
  6. Step 6: Final answer
    x = 43,697.29

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1.5x scale

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.