Home / 56,895.72-78,516.48-31,402.89

Finding the Fourth Proportional to 56,895.72, 78,516.48 and 31,402.89

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Solution

The fourth proportional to 56,895.72, 78,516.48 and 31,402.89 is: 43,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,895.72 : 78,516.48 = 31,402.89 : x
  2. Step 2: Convert to fraction form
    56,895.72/78,516.48 = 31,402.89/x
  3. Step 3: Cross multiply
    56,895.72x = 78,516.48 × 31,402.89
  4. Step 4: Simplify right side
    56,895.72x = 2,465,644,384.63
  5. Step 5: Solve for x
    x = 2,465,644,384.63/56,895.72
  6. Step 6: Final answer
    x = 43,336.20

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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.