Home / 53,868-74,337.84-31,516.32

Finding the Fourth Proportional to 53,868, 74,337.84 and 31,516.32

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Solution

The fourth proportional to 53,868, 74,337.84 and 31,516.32 is: 43,492.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,868 : 74,337.84 = 31,516.32 : x
  2. Step 2: Convert to fraction form
    53,868/74,337.84 = 31,516.32/x
  3. Step 3: Cross multiply
    53,868x = 74,337.84 × 31,516.32
  4. Step 4: Simplify right side
    53,868x = 2,342,855,153.55
  5. Step 5: Solve for x
    x = 2,342,855,153.55/53,868
  6. Step 6: Final answer
    x = 43,492.52

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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.